frequently seen at large. The larvae, however, are to be met with in
abundance in privet hedges. Even in the centres of large towns we may
see them resting on the topmost twigs of a privet hedge, their beautiful
green tint closely resembling that of the surrounding leaves. After a
little experience they may be readily discerned by a careful observer,
but there are certain signs by which their presence may be proved before
they have been actually seen. Sometimes a number of the twigs are
completely stripped of their leaves, even the midribs and the leaf
stalks being almost or entirely devoured; and beneath the bushes are
the large black masses of excrement that tell of the marauders above.
When found, these larvae should always be removed on a piece of the twig
to which they are attached, for they hold on so firmly by their claspers
that it is sometimes almost impossible to remove them from their hold
without injury.
These caterpillars may easily be distinguished from those of the other
'hawks' by the seven oblique stripes which adorn the sides. These are
each composed of two colours, white and lilac, and form a pretty
contrast with the bright green of the rest of the body. The horn is
smooth and curved, and is black with the exception of part of the under
side, which is yellow.
They are fully grown in August, and from the end of this month till the
following June the chrysalides may be dug out from under privet and
lilac bushes, both of which are attacked by the larva.
_The Spurge Hawk_ (_Deilephila Euphorbiae_)
This is a very rare British species; in fact, it has never been seen in
this country in its perfect state, but the larva has been found
plentifully at Appledore and Braunton Burrows, in North Devon, feeding
on the sea spurge (_Euphorbia Paralias_).
The perfect insect is shown on Plate IX (fig. 2).
[Illustration: FIG. 99.--THE CATERPILLAR OF EUPHORBIAE.]
The caterpillar is black, with a large number of small yellowish white
dots, and two rows of spots of the same colour on each side. There is
also a red line on each side, and another down the middle of the back.
The horn is rough and red with a black tip. It feeds during August and
September.
_The Small Elephant Hawk_ (_Chaerocampa Porcellus_)
This pretty insect is one of the smallest of our hawk moths. It is
widely distributed, being met with in many parts of England and in the
south of Scotland. It flies in June.
The fore wings are of a dull yellow colour, with rosy-red hind margins,
and a broad border of the same tint on the costal margin. The hind wings
have also a rosy-red hind margin, and are smoky black along the costae,
and yellow in the anal angle. The body is coloured with bright rose-red,
tinged with olive on the foremost and hindmost segments.
The popular name of this and the following species has been applied
because of the power which the caterpillar has of extending and
retracting its front segments, a peculiarity which has given the idea of
a semblance to the elephant's proboscis. The colour of the caterpillar
is light-brown or green, mottled with dark-brown, dark-green, or black.
It has a conspicuous eye-like spot on each side of the fifth and sixth
segments, and has no horn.
[Illustration: FIG. 100.--THE SMALL ELEPHANT HAWK MOTH.]
This larva may be found in July and August, feeding on species of
bedstraw (_Galium verum_, _G. Mollugo_, and _G. palustre_), willow herb
(_Epilobium hirsutum_), or the purple loosestrife (_Lythrum Salicaria_).
_The Large Elephant_ (_Chaerocampa Elpenor_)
This species (Plate IX, fig. 3) is very similar to the last in form and
markings; but is, as its name implies, larger.
The caterpillar, too, is very like that of the last species, but may be
distinguished from it by the possession of a short black horn, tipped
with white, on the 'tail.' Its colour is green or brown, mottled and
spotted with black. The eye-like spots on its fifth and sixth segments
are black, and each contains a brown spot surrounded by a white line.
Its chief food plants are the hairy willow herb (_Epilobium hirsutum_),
three species of bedstraw (_Galium verum_, _G. Mollugo_ and _G.
palustre_), the purple loosestrife (_Lythrum Salicaria_), and the
enchanter's nightshade (_Circaea lutetiana_). It will also feed on the
vine and the apple in confinement.
_The Eyed Hawk_ (_Smerinthus Ocellatus_)
Our next genus (_Smerinthus_) contains three well-known moths, all of
which have the hind margin of the fore wings angulated or indented.
The first is the Eyed Hawk, represented in fig. 4 of Plate IX and named
after the beautiful and conspicuous eye-like spot near the anal angle of
each hind wing.
The caterpillar has a rough green skin, sprinkled with white dots, and
marked with seven oblique white lines on each side, each of which is
bordered with dark green above. The spiracles are pinkish, surrounded by
violet rings; and the horn is blue.
The moth flies during May, June, and July; and the caterpillar may be
found in plenty during August, feeding on the apple, willow (_Salix
alba_), sallow (_S. cinerea_ and _S. Caprea_), poplar (_Populus alba_
and _P. nigra_), aspen (_P. tremula_), and the blackthorn (_Prunus
spinosa_).
As with many other _Sphinges_, the larvae are much more commonly seen
than the perfect insects; but the latter may often be met with resting
on tree trunks and fences in the neighbourhood of their food plants.
_The Poplar Hawk_ (_Smerinthus Populi_)
[Illustration: FIG. 101.--THE POPLAR HAWK.]
This moth is very common and very widely distributed, and may be easily
found in any of its stages. The perfect insect flies during May, June,
and July; and being rather heavy on the wing, it is easily taken with a
net as it hovers round the branches of its favourite trees or among the
flowers of gardens at dusk. The larva may be beaten from the boughs of
poplars and sallows during August and September, and during the latter
month may often be seen creeping down and around the trunks of these
trees, searching for a suitable spot in which to undergo its changes.
The pupa may be dug out of the soil at the foot of the same trees
during the autumn, winter, and spring months.
The fore wings are ashy grey or greyish brown, marbled with darker
tints, with a conspicuous white spot near the centre. The hind wings are
similarly coloured except at the base, where there is a large patch of
brick-red.
The caterpillar is rough, of a pale green colour dotted with yellow,
with seven oblique yellow stripes on each side. The spiracles are white,
edged with red; and the horn is yellow on the upper, and reddish on the
under side. Its chief food plants are the poplar, the Lombardy poplar
(_Populus pyramidalis_), aspen (P_. tremula_), and sallow (_Salix
Caprea_ and _S. cinerea_).
_The Lime Hawk_ (_Smerinthus Tiliae_)
This beautiful moth (fig. 5, Plate IX) is easily identified by its rich
olive green and brown wings, the fore pair of which have very
conspicuous patches of deep olive, sometimes uniting to form a
continuous central bar. It flies in May and June.
The caterpillar is rough, of a pale green colour, dotted with yellow,
with seven oblique yellow stripes on each side. Thus it is very like the
larva of _Populi_, but may be distinguished from that species by the
orange spiracles, and by the horn, which is rough, blue above, and
yellow beneath. Behind the horn, too, there is a flat purple or violet
scale with an edging of orange.
The food plants of this species are the lime (_Tilia vulgaris_), elm
(_Ulmus campestris_), and the hazel (_Corylus Avellana_), from which the
larvae may be beaten in August and September, and from under these the
pupae may be dug out during the winter months.
_The Humming-Bird Hawk_ (_Macroglossa Stellatarum_)
The genus to which this insect belongs contains three interesting
British species. Their antennae are thickened toward the end, but
terminate in a small curved bristle. Their wings are rather short and
broad; their bodies are very thick, terminating in a broad tuft of hair;
and the perfect insects fly during the daytime, delighting in the
hottest sunshine. The larvae feed principally on low-growing plants, and
undergo their metamorphoses on the ground among the foliage.
On Plate IX (fig. 6) one of these pretty moths is shown. It is the
Humming-bird Hawk, so called on account of its exceedingly rapid
humming-bird-like flight, accompanied by a soft humming sound.
This insect is very common; and, being very partial to the attractions
offered by many of our favourite garden flowers, it ought to be well
known to all observers of nature.
Take your stand near a bed of petunias or verbenas, or close to a
honeysuckle in bloom, on any hot summer's day, and you are almost sure
to be rewarded by a peep at the wonderful flight and interesting ways of
this moth. It makes its appearance so suddenly that you first view it as
an apparently motionless insect, suspended in the air, and thrusting its
long proboscis into the tube of an attractive flower. Its wings vibrate
so rapidly that they are quite invisible, and give rise to the soft hum
already mentioned. Then it darts from one flower to another, making a
similar brief stay before each while it sucks the grateful sweets. Raise
your hand as if to strike, and suddenly it vanishes you know not where.
But it is as bold as it is wary, and will often return to the selfsame
flower as if to defy your power. A sharp sweep of your net in a
horizontal direction, or a sudden downward stroke, _may_ secure it; but
if you miss it, as you probably will, it will disappear like a phantom,
and give you no opportunity of making a second attempt.
This moth is on the wing throughout the hottest months of the year--May
to September, and will often greet you as you roam over flowery banks in
search of butterflies.
The caterpillar feeds on the lady's bedstraw (_Galium verum_), hedge
bedstraw (_G. Mollugo_), and the goose grass (_G. Aparine_), and may be
searched for in August and September. It is rough, green or brownish,
and dotted with white. Along each side are two light lines. The horn is
thin and short, rough, and points upwards.
_The Broad-bordered Bee Hawk_ (_Macroglossa Fuciformis_)
The two other moths of this genus are called Bee Hawks from their
resemblance to the humble bee. They are very much alike, but may be
distinguished by a difference in the width of the dark border of the
wings; and are named Broad-bordered and Narrow-bordered respectively.
The former is illustrated in the woodcut appended. The fore wings are
transparent like those of bees, with a dark central spot and a broad
reddish-brown hind margin. The base and costa are black and tinged with
green. The hind wings are similarly coloured, but have no central spot.
The body is olive-brown, with a broad reddish belt, and behind are tufts
of hair, which are spread out when the insect flies, just after the
manner of the tail feathers of a bird. The moth flies in May.
[Illustration: FIG. 102.--THE BROAD-BORDERED BEE HAWK.]
The larva resembles that of _Stellatarum_, but exhibits a violet tint
above the legs. Its horn, too, is curved, and of a reddish or brownish
colour. It feeds on the honeysuckle (_Lonicera Periclymenum_), ragged
robin (_Lychnis Flos-cuculi_), evening campion (_L. vespertina_), red
campion (_L. diurna_), lady's bedstraw (_Galium verum_), and the field
scabious (_Scabiosa arvensis_), during the month of July.
Family SESIIDAE--THE CLEARWINGS
This family contains fourteen very pretty British insects that differ
very much from other moths in many important and interesting
particulars.
Their antennae, like those of the _Sphingidae_, are thickest beyond the
middle, and those of the males are slightly _ciliated_ or hairy. Their
bodies are slender, and terminate behind in tufts of hair. The hind
wings in all cases are transparent, margined and veined with black or
brown; and the fore wings also, in most cases, have transparent bases.
These moths delight in the hottest sunshine, and may be seen gracefully
hovering over the flowers in our gardens, looking more like gnats, bees,
and wasps, than moths.
The larvae of these insects are all wood-eaters, and spend their time
within the stems of shrubs and trees, eating out galleries in the
material that forms both their food and their home. Within these they
also undergo their changes, and do not expose themselves to the free air
and light till they reach their perfect stage.
_The Hornet Clearwing of the Poplar_ (_Trochilium Apiformis_)
We can find space for a mention of only two of the clearwings, the first
of which is an insect that closely resembles the dreaded hornet, and
whose larva feeds in the stems of poplars--features which will account
for the above name.
[Illustration: FIG. 103.--THE HORNET CLEARWING OF THE POPLAR.]
The head of this species is yellow, its thorax brown with a large yellow
patch on each side, its abdomen yellow with two brown belts, and its
legs reddish orange. The front wings are transparent, with brown costae,
and all the wings are margined with brown.
The caterpillar, when full fed, makes a cocoon with silk and the chips
of wood that it has bitten off; and in this undergoes its metamorphoses.
It is fully grown in April, and the moth flies from the end of May to
the end of July.
There is another 'Hornet Clearwing,' the larva of which feeds on the
stems of osiers. It may be distinguished from the species just described
by a yellow 'collar' between the head and thorax, both of which are
blackish.
_The Currant Clearwing_ (_Sesia Tipuliformis_)
This is by far the commonest of all the Clearwings, and only too well
known to those who grow currants. Examine the shoots of _Ribes rubrum_
(red currant) and _R. nigrum_ (black currant), especially those that
present a withered or half-withered appearance, and you will almost
certainly meet with signs of the presence of this intruder. Little
wriggling larvae occupy the pithless stems throughout the winter and
spring. These are full grown in April, and in June the pretty little
moth emerges through a hole in the side of a shoot, leaving the empty
pupa case within its former home.
[Illustration: FIG. 104.--THE CURRANT CLEARWING.]
The fore wings of this moth have black margins, and a black transverse
bar beyond the middle. The body is black, with three pale yellow belts,
and black tufts of hair at the tip.
Family--ZYGAENIDAE
The remaining family of the _Sphinges_--the _Zygaenidae_--includes seven
British species, three of which are known popularly as the Foresters and
the others as the Burnets.
Their antennae are thickest beyond the middle, but do not terminate in a
hook. Their wings are narrow and completely covered with scales.
These moths are very sluggish creatures, spending the greater part of
their time at rest on the stems of low-growing plants. When they do fly,
their flight is short and heavy, and their pretty wings glisten in the
sunshine (for they are lovers of the sun), giving them the appearance of
bees rather than of moths. On account of this natural sluggishness, they
are exceedingly local, for they never move far from the spots where
their food plants abound, and where they had previously spent the
earlier stages of their existence. Thus we often come across a very
limited piece of ground actually alive with them, and outside which not
a single specimen is to be seen.
The larvae, too, are sluggish creatures, with soft and plump cylindrical
bodies and no horns. I will briefly describe three members of this
family.
_The Forester_ (_Ino Statices_)
The fore wings of this species are semi-transparent, and of a beautiful
glossy green. The hind wings also are semi-transparent, but of a dull
smoky tint. The thorax and abdomen are both of a brilliant metallic
green colour. The tips of the antennae are blunt, and the male may be
distinguished from his mate by these organs being slightly fringed or
ciliated.
[Illustration: FIG. 105.--THE FORESTER.]
The caterpillar is dingy grey or greenish, with a row of black spots
down the back, and a whitish stripe on each side. It feeds on the common
sorrel (_Rumex acetosa_) and the sheep sorrel (_R. acetosella_), and
when fully grown it spins a cocoon on the stem of its food plant, and
there changes to a chrysalis.
The larva may be found during May and early June. The chrysalis state
lasts only a few days, and the moth is on the wing during June and
July.
_The Broad-bordered Five-spotted Burnet_ (_Zygaena Trifolii_)
On Plate IX (fig. 7) will be found a coloured representation of this
Burnet. The two crimson spots in the base of the fore wing are very
close together, and often touch. The same remark also applies to the two
spots on the middle of the wing. A glance at the list of British Moths
(Appendix I) will show that we have also a _Narrow_-bordered
Five-spotted Burnet. This insect is very similar to the species now
under consideration, but may be identified by the narrower purplish
margin on the hind wings, and also by the shape of the antennae, which
are not thickened so much near the end as they are in _Trifolii_.
The larva of the present species is yellowish or greenish, with a row of
black spots on the back and a row on each side. It feeds on the
bird's-foot trefoil (_Lotus corniculatus_), hop trefoil (_Trifolium
procumbens_), and the horse-shoe vetch (_Hippocrepis comosa_) in May.
Late in May or in early June the chrysalis may be found in a silken
cocoon attached to a stem or leaf; and the perfect insect flies during
June and July.
_The Six-spotted Burnet_ (_Zygaena Filipendulae_)
So common is this moth, and so conspicuous when it flies in the blazing
sun, that it must be familiar to almost everybody. On a bright midsummer
day hundreds may often be started from their grassy beds from one little
patch of ground.
[Illustration: FIG. 106.--THE SIX-SPOTTED BURNET.]
[Illustration: FIG. 107.--THE LARVA OF FILIPENDULAE.]
The colouring of the wings is much the same as in the last species, but
there are two crimson spots instead of one near the tips of the fore
pair.
The larvae may be seen in vast numbers during May and June, feeding on
clovers (_Trifolium pratense_ and _T. repens_), and the bird's-foot
trefoil (_Lotus corniculatus_); and in the latter month thousands of the
chrysalides, inclosed in shuttle-shaped cocoons on grass stems, may be
seen on downs and sunny banks in almost every part of the country.
The caterpillar, which is yellow, may be known by the two rows of black
spots that adorn each segment of the body.
CHAPTER XVIII
_BOMBYCES_
This tribe is an important one, inasmuch as it contains those few moths
whose silk is of present or anticipated commercial value. Many of the
British members, even, make silken cocoons of moderate compactness, but
none of them yield a quantity and quality of silk to justify any attempt
to utilise it in the arts.
There are more than a hundred British species in this group, and these
represent no less than seventeen families, which exhibit a great variety
in their general appearance and habits.
Family--NYCTEOLIDAE
_The Green Silver-lined_ (_Hylophila prasinana_)
This family, under the name of _Chloephoridae_, is included by some
authors among the _Tortrices_ (page 298), which they somewhat resemble
in habits. It contains only four species, of which we will take one
example--the Green Silver-lined.
[Illustration: FIG. 108.--THE GREEN SILVER-LINED.]
The fore wings of this insect are pale green, with three oblique silvery
white lines, the middle one of which is far more distinct than the other
two. The hind wings are silvery white in the female, and yellow in the
male. It flies in May, and is common in the wooded districts of the
south-eastern counties.
The caterpillar is pale green, dotted and striped with yellow, and has a
reddish transverse band on the second segment. It feeds on oak (_Quercus
Robur_), birch (_Betula alba_), hazel (_Corylus_ _Avellana_), beech
(_Fagus sylvatica_), and alder (_Alnus glutinosa_), from which trees it
may be beaten in July and August.
Family--NOLIDAE
_The Short-cloaked Moth_ (_Nola cucullatella_)
We select this common moth as a representative of the small family
_Nolidae_, which contains only five British species. These are all small
insects. They are nocturnal in their habits, and may be found at rest on
the trunks of trees during the daytime. The caterpillars are hairy, and
undergo their metamorphoses within silken cocoons.
[Illustration: FIG. 109.--THE SHORT-CLOAKED MOTH.]
The fore wings of _Cucullatella_ are pearly grey, with a dark patch at
the base, a triangular spot on the middle of the costal margin, and wavy
lines beyond this, parallel with the hind margin. The hind wings are
grey, and devoid of any markings.
The caterpillar is of a brownish colour, with a line of lighter patches
down the back, and it is covered with little tufts of hair. It feeds on
the blackthorn (_Prunus spinosa_), whitethorn (_Crataegus oxyacantha_),
and also on plum trees in our gardens during the month of May. The moth
is on the wing during June and July.
Family--LITHOSIIDAE
_The Muslin Moth_ (_Nudaria mundana_)
The family _Lithosiidae_ contains several small moths, distinguished from
the other _Bombyces_ by the narrowness of their fore wings. When the
insects are at rest, all the wings are wrapped closely round the body.
They fly at dusk on summer evenings, but may be obtained during the
daytime by beating the boughs of trees. If an open net be held under the
boughs during this operation, the moths will generally feign death and
allow themselves to fall into it when they are disturbed.
[Illustration: FIG. 110.--THE MUSLIN MOTH.]
Most of the larvae of this family feed on the lichens that cover walls
and the bark of trees, and they conceal themselves so artfully among
this peculiar vegetation that it is no easy matter to search them out;
probably many still remain unknown to entomologists.
Our first example--the Muslin Moth--has light brownish-grey and semi
transparent wings, the front pair of which have darker markings arranged
as shown in the illustration. It is a common moth, and may be met with
in July and August.
The caterpillar feeds on lichens in June. It is of a dull grey colour,
with a yellow stripe down the back, and has numerous little tufts of
light hair.
_The Common Footman_ (_Lithosia lurideola_)
The fore wings of this species are of a leaden grey, with a bright
yellow costal stripe which dwindles to a point just before it reaches
the tip. The hind wings are very pale yellow.
[Illustration: FIG. 111.--THE COMMON FOOTMAN.]
The larva is black, with a reddish line on each side just above the
feet. It may be found during May and June among the lichens of oaks,
blackthorns, and firs, especially in the woods of the south of England.
The perfect insect flies during July and August.
Family--EUCHELIIDAE
_The Cinnabar_ (_Euchelia Jacobaeae_)
The family _Eucheliidae_ contains only four British species, two of which
must receive a share of our attention. The first of these is the
Cinnabar Moth, which is common in all localities where its food
plants--the groundsel (_Senecio vulgaris_) and the ragwort (_S.
Jacobaea_)--abound.
[Illustration: FIG. 112.--THE LARVA OF JACOBAEAE.]
Its colours are so striking that a glance at its representation (fig. 1
of Plate X) will render a written description quite unnecessary.
The caterpillar is a very familiar and conspicuous object. Its colour is
bright orange, broken by several broad black rings; and its body is
thinly covered with hair. When fully grown (July or August) it descends
to the ground, and there changes to a smooth and shining reddish-brown
chrysalis.
The moth appears in June or early in July.
_The Scarlet Tiger_ (_Callimorpha Dominula_)
This is certainly one of the most beautiful of all our moths. Its fore
wings are dark olive green, with a lovely metallic lustre, and boldly
marked with large white and yellow spots. These spots are arranged
generally like those in the illustration, but are subject to great
variation. The hind wings are crimson, with large black patches, chiefly
distributed near the hind margin. The thorax is black, with two white
streaks; and the abdomen crimson, with a black line down the back.
[Illustration: FIG. 113.--THE SCARLET TIGER.]
This moth is a common one. It may be taken in June and July. I have seen
it flying somewhat freely while the sun was still shining brightly.
The caterpillar is very dark lead colour, nearly black; and is covered
with little wart-like projections, from each of which protrudes a short
black hair. There is a broad yellow broken line down the back, and two
others on the sides. It feeds on the hound's-tongue (_Cynoglossum
officinale_) and many other low-growing plants, hybernates through the
winter, and is fully grown in May. Like the other members of this
family, it spins a light silken cocoon, in which the hairs from its body
are interwoven.
Family--CHELONIIDAE
_The Wood Tiger_ (_Nemeophila Plantaginis_)
The _Cheloniidae_ are popularly known as the Tigers--a title suggested by
the tiger-like colouring of some of the prominent species. They differ
from the Scarlet Tiger and the other members of the _Eucheliidae_ in that
the males have ciliated or fringed antennae. The larvae, too, are more
densely covered with hair.
The Wood Tiger (fig. 2, Plate X) is a beautiful insect, somewhat
variable in its markings, but so conspicuously coloured that our
illustration cannot fail to lead to its identification. It may be found
commonly among the undergrowth of our southern woods during May and
June.
The caterpillar is dark brown or brownish black, covered with little
hair-bearing warts. The hairs are long and black on the foremost and
hind segments, but shorter and of a brown colour on the middle of the
body. It issues from the egg in September, feeds for a week or two on
the leaves of violets (_Viola canina_ and _V. odorata_), heartsease (_V.
tricolor_), plantain (_Plantago_), or groundsel (_Senecio vulgaris_),
and then hybernates till the following March. It is fully grown in May,
and then spins a light cocoon, with which its hairs are interwoven,
among the leaves of its food plant.
_The Tiger_ (_Arctia caia_)
This splendid moth is exceedingly variable in its colour and markings,
but its usual appearance corresponds closely with that of the
illustration on Plate X (fig. 3). In some specimens the cream colour
almost entirely covers the fore wings, while in others all four of the
wings are completely covered with shades of brown. This insect is
probably known to all my readers, for it is abundant everywhere.
The larva is as well known as the perfect insect. It is a kind of
universal feeder, partaking readily of almost every low-growing plant,
with perhaps a special partiality for dead nettles (_Lamium album_ and
_L. purpureum_). It feeds also on the lime tree (_Tilia vulgaris_), and
is commonly met with on apple trees and on the various plants of our
flower beds. The young caterpillar makes its appearance in the autumn,
and hybernates after feeding for two or three weeks only. It is full
grown in June, when it spins a silken cocoon, and changes to a shiny
black chrysalis.
The ground colour of the larva is black, but it is covered all over with
long hairs, those down the middle of the back being grey, and the others
brown. This familiar larva is known popularly as the Woolly Bear.
_The Cream-spot Tiger_ (_Arctia villica_)
There is yet another Tiger--the Cream-spot--too beautiful and too common
to be excluded from our list. It is represented on Plate X (fig. 4);
and, like the others of its genus, is so boldly marked that mistaken
identity is impossible.
It is a very sluggish moth, more often seen at rest than on the wing,
and will suffer itself to be roughly handled without making any attempt
to escape.
The caterpillar may be observed on sunny banks, generally feeding on
chickweed (_Stellaria media_) but sometimes on various other low-growing
weeds, including the dock and the dandelion. Its colour is black, with
red head and legs, and its body is covered with long brown hairs. It
commences to feed in the autumn, hybernates throughout the winter, and
is full grown in May, towards the end of which month it changes to a
black chrysalis within a light silken web.
The perfect insect appears in June.
_The Buff Ermine_ (_Spilosoma lubricipeda_)
The _Cheloniidae_ also include three moths that are popularly known as
the Ermines, two of which--the Buff and the White--are exceedingly
common, and are among the constant visitors to our gardens during June
and July.
[Illustration: FIG. 114.--THE BUFF ERMINE.]
The Buff Ermine has all four wings of a buff or ochreous tint, and
spotted with black as here represented.
The caterpillar is whitish, with a white line down the middle of the
back, and its body is covered with long light brown hairs. It feeds on
the dock (_Rumex_) and many other low-growing plants during August and
September, and spends the winter in the chrysalis state, lying within a
loose cocoon on the surface of the ground.
[Illustration: FIG. 115.--THE WHITE ERMINE.]
_The White Ermine_ (_Spilosoma Menthastri_)
In this species the wings are of a pale cream colour, and the dots of
the fore wings are more uniformly distributed than in the last. Its
habits and life history closely correspond with those of _Lubricipeda_,
and its larva may be found feeding on the same plants.
This latter may be distinguished from the caterpillar of the last
species by the dark brown or black colour of the body, and the presence
of an orange line down the back. It is covered with long brown hairs.
Family--HEPIALIDAE
The five species which compose this family are known as the Swifts, a
title which they have earned by their rather rapid flight. Their wings
are narrow, and the antennae very short.
In the larval state they are long, naked and unsightly grubs, that live
under the surface of the ground and feed on the roots of plants. The
chrysalides are armed with short spines projecting from the segments.
_The Ghost Swift_ (_Hepialus Humuli_)
One of the commonest of these moths is the Ghost Swift, which may be
seen in hundreds on waste places in the south of England during the
month of June. The wings of the male are white, with a silky gloss, and
a very narrow brown margin. The fore wings of the female are yellow,
marked with irregular reddish lines. The hind wings are of a dull smoke
colour.
[Illustration: FIG. 116.--THE GHOST SWIFT--FEMALE.]
The larva is pale yellow, with a brown head, and a brown horny plate on
the front of the second segment. It feeds throughout the winter on the
roots of numerous plants, including the dock, dandelion, burdock, white
dead nettle, black horehound, and the hop.
_The Common Swift_ (_Hepialus lupulinus_)
The fore wings of the male of this species are brown, with a bent
whitish streak, sometimes broken, passing from the base to the middle of
the inner margin, and then to the apex. The hind wings are smoke
coloured, with a light brownish fringe. The female is much less
distinctly marked, and presents a rather dingy appearance.
[Illustration: FIG. 117.--THE COMMON SWIFT.]
The larva is dingy white, with brown horny plates on the second, third
and fourth segments. It feeds on the roots of dead nettles (_Lamium
album_ and _L. purpureum_), black horehound (_Ballota nigra_), and
various other herbaceous plants, throughout the winter months, and is
full grown in April.
This insect is abundant everywhere in waste places, and may be seen on
the wing in May and June.
Family--COSSIDAE
The members of this family have longer antennae than the _Hepialidae_, and
the females are provided with extended ovipositors which enable them to
place their eggs in the deep crevices of the bark of trees.
The larvae are naked or only very slightly hairy, and have a plate on the
second segment. They feed on the wood of trees or the interior of the
stems of reeds. The pupae have spiny projections on each segment.
_The Goat Moth_ (_Cossus ligniperda_)
There are only three British species of this family, the largest of
which is the Goat Moth, so called on account of the characteristic odour
of the larva, an odour said to resemble that emitted by the goat.
The fore wings of this fine moth are pale brown, clouded with white, and
marked by numerous wavy transverse lines. The hind wings are somewhat
similar, but of a duller tint, and the markings are less distinct. Its
average breadth from tip to tip is over three inches, and it sometimes
reaches nearly four inches.
The larva is a most interesting creature. It is dark reddish brown on
the back, and flesh colour beneath; and its head is intensely black. It
feeds on the solid wood of the willow, poplar, oak, elm, and other
trees. The infected trees are often so riddled with the burrows of these
larvae that they are completely destroyed, and the presence of the
intruders is frequently indicated by a heap of small chips of wood lying
on the ground near the roots. The odour of the larvae, too, is so
powerful, that there is generally no difficulty in ascertaining their
whereabouts by it alone.
[Illustration: FIG. 118.--THE GOAT MOTH.]
It is not always in living trees, however, that we find these creatures,
for they often feed on rotting wood, such as the remains of old palings
and posts, that lie on the ground in damp places.
[Illustration: Fig. 119.--THE LARVA OF LIGNIPERDA (LESS THAN HALF FULL
SIZE).]
When fully grown they construct a strong cocoon of chips of wood, bound
together by silk, and within this they change to the chrysalis.
The moth emerges in June or July, and is commonly found resting on the
bark of willows and poplars during the daytime.
_The Leopard Moth_ (_Zeuzera pyrina_)
The wings of this species are white and semi-transparent, and marked
with numerous bluish-black spots in such a way as to remind one of the
skin of the leopard. Its body is very long, and the antennae of the male
are doubly fringed for about half their length from the base.
[Illustration: FIG. 120.--THE LEOPARD MOTH.]
The caterpillar feeds on the wood of various trees--elm, apple, pear,
ash, alder, poplar, horse chestnut, birch, lilac, and several others. It
is yellowish, with black shiny spots, and a black plate on the second
segment.
[Illustration: FIG. 121.--THE LARVA OF PYRINA (ONLY PARTLY GROWN).]
The moth appears in July, and is widely distributed. It is attracted by
bright lights, but the best way to obtain it is to search the trunks and
branches of trees that are known to harbour the larvae early in the
morning, and so obtain newly emerged specimens.
Family--LIPARIDAE
Passing over the two small species which are the only British
representatives of the family _Cochliopodidae_, we come to the
interesting _Liparidae_, the remarkable feature of which is that most of
the caterpillars are adorned with brush-like tufts of hair, and even the
chrysalides are hairy.
The perfect insects are not brilliantly coloured, but generally display
very pale tints; and the antennae of the males are pectinated or
feathered.
_The Brown Tail_ (_Porthesia chrysorrh[oe]a_)
The family contains two moths--the Brown Tail and the Yellow Tail--that
are very similar in appearance and habits. Both have white wings, and
their bodies also are white with the exception of the tuft of coloured
hair at the tip of the abdomen, which gives the names to the species.
Their larvae may both be found feeding on the same trees (whitethorn),
and both change to a brown hairy chrysalis within a loose cocoon among
the leaves.
The larva of _Chrysorrh[oe]a_ is black, with four rows of little
wart-like projections on each side, from which proceed little tufts of
hairs. These hairs are reddish with the exception of one row on each
side, which is white. The tenth and eleventh segments have each a
scarlet tubercle, and there are also other small spots of the same
colour on some of the front segments.
[Illustration: FIG. 122.--THE BROWN TAIL.]
The larva feeds on the blackthorn in addition to the tree mentioned
above, and is full grown in June. The moth flies in August.
_The Gipsy_ (_Ocneria dispar_)
The fore wings of the male are smoky brown, with darker markings,
including a V-shaped black mark near the centre. The hind wings are
brown, darker near the margin. The female is dingy yellowish white, with
darker markings arranged as in the male. The male is much inferior in
size, and its antennae are very strongly pectinated.
[Illustration: FIG. 123.--THE GIPSY--MALE.]
The larva is brownish black, finely dotted with yellowish grey. There is
a grey stripe down the middle of the back, and six tubercles on each
segment give rise to tufts of long hair. It feeds on the whitethorn
(_Crataegus oxyacantha_), blackthorn (_Prunus spinosa_), and various
fruit trees.
The caterpillar is full grown in June, and the moth appears in August.
_The Black Arches_ (_Psilura Monacha_)
The fore wings of the Black Arches are white, marked with zigzag black
lines as shown in our illustration. The hind wings are smoky grey. The
hinder segments of the abdomen are banded with black and rose-pink. The
male is much smaller than the female, and has the antennae strongly
pectinated.
[Illustration: FIG. 124.--THE BLACK ARCHES--MALE.]
The caterpillar is hairy, and of a greyish-white colour. A brown stripe
runs down the back. On the top of the second segment are two blue
tubercles; and there is also a tubercle, of a reddish colour, on each of
the ninth, tenth, and eleventh segments. It feeds on the oak, birch,
fir, and the apple; and is full grown in June or July.
The moth flies during July and August.
_The Vapourer Moth_ (_Orgyia antiqua_)
During the hottest summer months, and particularly in August and
September, a rather small brown moth may be seen almost everywhere,
flying rapidly and in a very erratic manner in the bright rays of the
midday sun. This is the common Vapourer Moth, which may be known at once
by its bright chestnut colour, with darker transverse markings, and a
white crescent-shaped spot in the anal angle of the fore wings. It seems
somewhat partial to civilised life, for it frequents the streets of our
metropolis, even in the very densely populated parts; and the larva is
one of the commonest of the insect forms infesting our gardens and
squares.
[Illustration: FIG. 125.--THE VAPOURER MOTH--MALE.]
[Illustration: FIG. 126.--THE FEMALE VAPOURER.]
The caterpillar is variously coloured; but the prevailing tints are dark
brown, grey, and pink. On the second segment are two long tufts of hair
directed forward, and on the twelfth segment a similar tuft directed
backward. On each of the segments five to eight inclusive is a
brush-like tuft of yellowish hairs. It feeds on almost every tree
usually to be found in parks and gardens.
When fully grown it spins a web on the bark of a tree, or on a wall or
fence, and changes to a hairy chrysalis.
[Illustration: FIG. 127.--LARVA OF THE VAPOURER MOTH.]
The female of this species is wingless, and never moves away from the
cocoon out of which she has crawled, but lays her eggs on the outside of
the silken web, and there remains to die.
The clusters of eggs may be found in abundance throughout the winter
months.
Family--BOMBYCIDAE
This family contains eleven thick-bodied moths, mostly of large size, in
which the predominating colours are greys and browns. Their hind wings
are generally paler than the front pair, and less distinctly marked; and
the antennae of the males are pectinated.
The caterpillars are very hairy, but the hairs are uniformly
distributed, and not arranged in tufts as in the larvae of the last
family.
The chrysalides are inclosed in silken cocoons, but are not hairy.
We shall briefly examine three of the members of this family.
_The Oak Eggar_ (_Bombyx Quercus_)
The male of this species is shown on Plate X (fig. 5). The female is
much larger, and of a pale tawny colour.
The ground colour of the caterpillar is black; but it is so closely
covered with short yellowish brown hairs that the black is scarcely
visible, excepting when the creature rolls itself up into a ring, which
it does when alarmed. The spiracles are white, and there is a series of
white spots down the middle of the back and along each side. It feeds on
whitethorn (_Crataegus oxyacantha_), heather (_Calluna_, _Erica_), poplar
(_Populus nigra_), and various other plants and trees.
As a rule the larva hybernates through the winter, is full grown in the
following May, and the moth appears in July; but in Scotland the
caterpillar does not spin its cocoon till September, hybernates in the
chrysalis state, and emerges in the following June. The same is true of
the Cornish Eggars; but along the coast of South Devon both varieties
are to be met with.
The male Eggar seems to enjoy the bright sunshine, for I have seen large
numbers flying over the rugged cliffs of the south-west throughout all
hours of the day.
_The Drinker_ (_Odonestis potatoria_)
The popular name of this species is applied on account of a peculiar
feature of the larva, which sucks up the dewdrop that lies on its food
plant.
The colour of the male is tawny and brown, with a reddish tinge; that of
the female is yellow. The front wing has an oblique dark bar passing
from the apex to the middle of the inner margin; also two white
spots--one in the middle of the wing, and the other between it and the
costal margin.
[Illustration: FIG. 128.--THE DRINKER--MALE.]
The caterpillar is dark bluish grey above, and has a line of orange
spots on each side. Along the spiracles are oblique orange streaks, and
a series of tufts of white hair. It feeds on the annual meadow-grass
(_Poa annua_), and several other grasses. It is a hybernator, commencing
its caterpillar state in the autumn, and reaching its full dimensions
about the end of the following May.
The moth flies during July and August.
_The Lappet_ (_Lasiocampa quercifolia_)
Our last example of the _Bombycidae_ is the Lappet (Plate X, fig. 6), a
large moth, the female often measuring considerably over three inches
from tip to tip. The wings are of a rich reddish brown, and exhibit a
beautiful purplish bloom in a newly emerged insect. Scalloped black
lines pass transversely across each wing, and a small black dot lies
near the centre of the fore wings.
The caterpillar is very variable in colour, but is usually grey or
reddish brown. A deep purple band lies between the second and third
segments, and another between the third and fourth. On the twelfth there
is a small hump, and a pale stripe, more or less distinct, runs along
each side. It feeds on the blackthorn (_Prunus spinosa_), buckthorn
(_Rhamnus catharticus_), and the white willow (_Salix alba_).
The moth is not uncommon, and is on the wing in June.
Family--ENDROMIDAE
_The Kentish Glory_ (_Endromis versicolor_)
The beautiful Kentish Glory is the only British representative of its
family. The male is shown in Plate X (fig. 7); the female is larger and
similarly marked, but its colours are not so bright.
This moth is not common, but may be seen occasionally in the birch woods
of the southern counties. The males fly rapidly in the bright sunshine,
but the females must be searched for on the bark and branches of the
trees.
The eggs are laid in April on the twigs of the birch (_Betula alba_),
and the young caterpillar emerges early in May. It is gregarious at
first, but loses its social tendencies as it gets older. When full
grown, it is of a pale green colour, with white spiracles, a dark green
line down the back, and an oblique white stripe on each side of each
segment. The sides are dotted with black and brown, and there is a
conspicuous hump on the top of the twelfth segment.
When fully grown it spins a cocoon among the dead leaves beneath the
tree, and in this it spends the winter months in the chrysalis state.
Family--SATURNIIDAE
_The Emperor Moth_ (_Saturnia pavonia_)
Here is another family with but one British member; but in this, as in
the last case, the only representative is a really beautiful insect. The
male _Pavonia_ is shown on Plate X (fig. 8), and will need no written
description as an aid to its identification. The female is larger, and
similarly marked, but the ground colour of the wings is pale grey.
This moth is abundant almost everywhere, and may be looked for in the
neighbourhood of heaths and woods early in the month of May.
The larva feeds on a large number of plants and trees, among which may
be mentioned the willow (_Salix alba_), blackthorn (_Prunus spinosa_),
elder (_Sambucus nigra_), whitethorn (_Crataegus oxyacantha_), bramble
(_Rubus fruticosus_), heaths (_Erica tetralix_ and _E. cinerea_), and
the meadow-sweet (_Spiraea ulmaria_). Its colour is a lovely green; and
each segment has several pink tubercles, each surrounded by a black
ring, and giving rise to a tuft of short black hairs. The spiracles are
orange.
In the autumn it spins a pear-shaped cocoon of silk, open at the small
end (fig. 28).
It may here be mentioned in passing that, in the case of some of the
larger moths of the few preceding families, the young entomologist is
likely to meet with larvae more frequently than the perfect insect. These
moths, however, are mostly very hardy and easily reared; and a beginner
cannot do better than endeavour to obtain either ova or larvae, in order
that he may be able to watch the different species through their various
stages.
Family--DREPANULIDAE
We now reach a family containing six small moths that differ in many
important particulars from those we have just been considering. They are
of such slender build that a beginner may easily mistake them for
Geometers. Their wings, though small, are broad, and well proportioned
to their bodies. In five cases out of the six the front wings are more
or less hooked at the tips, and on this account the moths in question
are called the Hook Tips.
The larvae are not hairy, but they all have little fleshy projections on
their backs. Their bodies also taper to a point behind, and the last
pair of claspers are wanting, so that they have only fourteen walking
appendages. When at rest they usually fix themselves by their claspers
only, their pointed 'tails' being directed slightly upward, and all the
front segments being also elevated. When about to change, they descend
to the ground, and spin their cocoons among dead leaves.
Two only of this family can receive an individual notice.
_The Oak Hook Tip_ (_Drepana binaria_)
This can hardly be described as a very common moth, but it is fairly
plentiful in the woods of the southern counties of England.
Its wings are yellowish brown, marked with two lighter transverse lines.
There are two black spots between the lines of the fore wings. The
antennae of the male are pectinated; those of the female simple. The
latter sex is further distinguished by the paler colour of the hind
wings.
[Illustration: FIG. 129.--THE OAK HOOK TIP.]
The larva is brown, with a broad stripe, edged with yellow, down the
back. There are two projections on the back of the fourth segment. It
feeds on oak (_Quercus Robur_) and birch (_Betula alba_).
This moth is double-brooded, and may be seen on the wing in June and
August. The larva may be beaten from the above-mentioned trees in June
and July, and again in September.
_The Chinese Character_ (_Cilix glaucata_)
The fore wings of this species are white, with a broad dark blotch from
the inner margin to near the costa. The central portion of this blotch
is marked with silvery spots which are said to resemble Chinese
characters. The hind margin is shaded with a dark grey border, inside
which is a row of dark spots. The hind wings are clouded with grey.
[Illustration: FIG. 130.--THE CHINESE CHARACTER.]
This moth is widely distributed, and seems to be common throughout
England. It is double brooded, the first brood appearing in May and
June, and the second in August.
The caterpillar, which is brown, with two prominent tubercles on each of
the third and fourth segments, feeds on the whitethorn (_Crataegus
oxyacantha_), and the blackthorn (_Prunus spinosa_).
Family--DICRANURIDAE
The five British species that represent this family are such interesting
insects that we should like to have given a detailed description of all
of them, but our limited space will allow of no more than an outline of
the general characteristics of the group and a selection of two for
individual mention.
They are thick-bodied moths, and the prevailing colours are white and
shades of grey. The antennae are pectinated in the males, and, with the
exception of the Lobster Moth (_Fagi_), in the females also.
The larvae, like those of the last family, have no anal claspers, and
stand, when at rest, with both ends of the body raised. They have two
'tails' projecting from the last segment. The largest of them (the
Puss), and three smaller species (Kittens) that closely resemble it in
habits, all construct hard cocoons to be presently described; but the
larva of the Lobster Moth spins a light cocoon among the leaves of
trees.
They all spend the winter in the chrysalis state.
_The Poplar Kitten_ (_Dicranura bifida_)
Our illustration shows the arrangement of the white and grey on the
wings of this moth, but the other Kittens (_Bicuspis_ and _Furcula_) so
closely resemble it that it is necessary to point out a mark of
distinction. It will be observed that the fore wings are crossed by a
broad grey band, edged with black. This band, in the present species, is
almost of the same width throughout, its interior margin being almost
straight, and the exterior one slightly concave. In _Furcula_, the outer
margin of the band is generally sharply bent inward just below the
costa. In _Bicuspis_ the grey band varies considerably in shape, but
both this and the dark blotch near the tip of the wing are more sharply
defined than in the other two species.
[Illustration: FIG. 131.--THE POPLAR KITTEN.]
The caterpillar is green, dotted with brown, and has a brown stripe on
the back. This stripe is broken on the third segment, and widens out on
the eighth and thirteenth segments. It feeds on the Poplar (_Populus
nigra_) and Aspen (_P. tremula_).
When full grown it descends to the trunk of the tree, and constructs a
very hard cocoon of a glutinous substance from its own body mingled with
little pieces of the bark that it removes for the purpose. Thus made,
the cocoon so closely resembles the surrounding bark that detection is
very difficult. I have frequently found these cocoons on the inner
surface of loose bark.
This moth is widely distributed, and may be searched for in June and
July. The larva feeds during August and September.
_The Puss_ (_Dicranura vinula_)
No written description is necessary in this case, the illustration
easily serving for identification. This beautiful moth flies in May and
June, and is common everywhere.
[Illustration: FIG. 132.--THE PUSS MOTH.]
The caterpillar is a very interesting creature. It is green, with a hump
on the fourth segment, and a patch of brown from the fourth segment to
the tail. This patch is very wide on the eighth segment, but tapers to a
point on the thirteenth. The two horns are rather long and rough, and
from each of them a very slender pink filament is protruded when the
caterpillar is irritated.
It constructs a cocoon very similar to that of _Bifida_, though of
course larger, on the bark of the tree on which it fed, generally three
or four feet from the ground. It feeds on sallows, willows, and poplars,
and may be found during July and August.
Family--NOTODONTIDAE
_The Coxcomb Prominent_ (_Lophopteryx camelina_)
The family _Notodontidae_ contains several moths of somewhat varied
appearance, but foremost among them are the 'Prominents,' distinguished
by a conspicuous projection on the inner margin of the fore wings.
[Illustration: FIG. 133.--THE COXCOMB PROMINENT.]
Our example of this group is the Coxcomb Prominent.
Its fore wings are brown, with darker markings arranged as shown in the
illustration; and the hind margins are scalloped. The hind wings are
much paler, with a dark brown patch in the anal angle.
The caterpillar is green, with a yellowish line on each side. The
spiracles are black, and there are two small humps on the twelfth
segment. It feeds during August, September, and October, on various
trees, including the oak, birch, poplar, hazel, and alder.
The moth flies from June to August, and is moderately common and widely
distributed.
Family--PYGAERIDAE
_The Buff Tip_ (_Phalera bucephala_)
The first of our two examples of this small family is the common and
destructive Buff Tip. The perfect insect is represented on Plate X, fig.
9, and is too well known to require a lengthy description. During June
and July it may be seen resting on the bark of trees almost everywhere,
with its wings folded closely round its body, and its antennae tucked
under the wings, looking just like a piece of stick, or a projection of
the bark on which it sits.
[Illustration: FIG. 134.--THE LARVA OF BUCEPHALA.]
The caterpillars appear towards the end of June, and may be seen in
dense clusters on lime and other trees, sometimes twenty or thirty
huddled together on a single leaf. As they grow larger they retain their
gregarious tendencies, and often completely strip the leaves from large
branches. They are of a dull yellow colour, hairy, and have seven broken
black lines, one along the middle of the back, and three on each side.
The head and legs are black.
When full grown, they descend to the root of the tree, burrow into the
soil, and there remain in the chrysalis state till the following June.
The chief food plants of this species are the lime (_Tilia vulgaris_),
elm (_Ulmus campestris_), and hazel (_Corylus Avellana_).
_The Chocolate Tip_ (_Pygaera curtula_)
This species is not nearly so common as the last, but is to be met with
more or less in most of the English counties in the month of May.
Its fore wings are light greyish brown, crossed with four transverse
paler streaks, and tipped with a patch of chocolate brown. The hind
wings are pale yellowish grey.
[Illustration: FIG. 135.--THE CHOCOLATE TIP.]
The young caterpillars feed in companies between leaves which they have
spun together, but when nearly full grown they cease to be gregarious.
They are also very different in appearance at different ages. When fully
fed, the larva is of a reddish-grey colour, spotted with black, with a
double row of orange-coloured warts on each side. There is also a little
black hump on each of the fifth and twelfth segments.
The food plants of this species are sallows (_Salix caprea_ and _S.
cinerea_), poplar (_Populus nigra_), and aspen (_P. tremula_).
Family--CYMATOPHORIDAE
This, the last family of the _Bombyces_, contains seven species of
moderate size, the larvae of which are either quite smooth or have small
warty prominences. The seven species are grouped into three genera, from
two of which we shall select a representative.
_The Peach Blossom_ (_Thyatira Batis_)
The popular name of this pretty little moth is given on account of the
resemblance of the pink patches of its olive-brown fore wings to the
petals of the peach flower. It is a moderately common moth, widely
distributed in England and Ireland, and flies during June and July.
[Illustration: FIG. 136.--THE PEACH BLOSSOM.]
The caterpillar is marbled with reddish grey and brown, and has a hump
on the third segment, and a smaller prominence on each of the segments
six to ten inclusive. It feeds on the bramble (_Rubus fruticosus_)
during August and September, and spends the winter in the chrysalis
state, inclosed in a loose cocoon among the dead leaves at the root of
its food plant.
_The Yellow-horned_ (_Asphalia flavicornis_)
This is one of the earliest of our moths, appearing on the wing in
March, when it may be attracted by means of sugar placed on the bark of
the birch (_Betula alba_).
[Illustration: FIG. 137.--THE YELLOW-HORNED.]
The wings are grey, with a decidedly greenish tinge, crossed by three
dark lines near the base, and two others, which are zigzag, just outside
the centre. Between these two sets of lines is a conspicuous round pale
spot. The hind wings are greyish brown, darker along the hind margin.
The larva, which feeds on the above-named tree, is pale greenish, with
both white and black dots. It rolls itself up in a leaf, and seldom
ventures out of the retreat thus formed. It is fully fed in July or
August.
CHAPTER XIX
_THE NOCTUAE_
We have already noticed that several of our moths fly by day; that some
come out of their hiding places at dusk, and settle down again to rest
before the deepest shadows of night fall; and that others prefer the
darkest hours of the night. The tribe of moths we are next to consider
includes the greater number (about three hundred) of our truly nocturnal
species, hence the name that heads this chapter.
They are generally of a somewhat dingy appearance, the prevailing
colours being dull shades of grey, drab, and brown. So closely, in fact,
do certain of them resemble each other, that the greatest care has to be
exercised in the identification of species--a task that is rendered
still more difficult by the variations that we observe in the tints and
markings of certain species.
These moths have generally rather stout bodies. Their fore wings are
somewhat narrow, and, when the insects are at rest, these are brought
close to the body, and the hind pair are folded up beneath them.
Family--BRYOPHILIDAE
_The Marbled Beauty_ (_Bryophila Perla_)
Our first family--the _Bryophilidae_--contains only four British species.
These are small and slender-bodied moths, whose larvae feed in early
morning on the lichens that cover stones and old walls, and conceal
themselves by day in holes and chinks and under stones.
The Marbled Beauty is the only moth of this family that may be
described as common with us. It is abundant in nearly every English
county, as well as in parts of Scotland and Ireland.
[Illustration: FIG. 138.--THE MARBLED BEAUTY.]
Its wings are very pale grey, marked with a darker bluish grey, as shown
in the engraving. These markings are variable, but the bases of the fore
wings have always a dark blotch, followed by a patch of pale grey or
white, extending the whole width of the wing. The moth may be found from
the beginning of July to the middle of September.
The larva feeds from February to April. It is black above, with a broad
orange-bordered stripe down the back; and its body is covered with small
warts, each of which bears a single hair.
Family--BOMBYCOIDAE
In this family there are sixteen British moths, several of which are
exceedingly common. They are much larger than the _Bryophilidae_, and of
a much stouter build. The larvae are covered with little hair-bearing
warts, and are, indeed, often so hairy that they may be mistaken for the
caterpillars of the _Bombyces_.
_The Grey Dagger_ (_Acronycta Psi_)
This is the commonest of all the _Bombycoidae_. It may be found at rest
on tree trunks and palings during the daytime throughout the summer. Its
fore wings are pale grey, with four conspicuous black marks, one of
which--that in the anal angle--resembles the Greek letter _psi_ ([psi])
placed sideways.
[Illustration: FIG. 139.--THE GREY DAGGER.]
The larva is black or very dark grey, with a pale yellow line down the
back, and a black hump on each of the fifth and twelfth segments, that
on the fifth being much larger than the other. It feeds in the autumn on
lime (_Tilia vulgaris_), blackthorn (_Prunus spinosa_), whitethorn
(_Crataegus oxyacantha_), fruit trees, and various other trees, shrubs,
and herbs.
The moth called the Dark Dagger (_Tridens_) is hardly to be
distinguished from _Psi_. It is not really any darker, and its markings
are almost exactly similar; but the larva is very different.
_The Poplar Grey_ (_Acronycta megacephala_)
This is also a very common moth, to be found in all the southern and
midland counties, wherever poplars abound, during June and July.
[Illustration: FIG. 140.--THE POPLAR GREY.]
Its fore wings are grey, marbled with a very dark grey. A little inside
the middle of these wings, near the costa, is a round spot with a dark
centre. This spot is represented in a large number of the _Noctuae_, and
is known as the _orbicular_. It will be observed that in the present
species it is very distinct.
The caterpillar is dark grey, with a line of black dots down the back;
and it has a number of little warts, bearing hairs. On the back of the
eleventh segment is a rather large pale spot. It feeds during August on
various species of poplar, and changes to a chrysalis in a crevice of
the bark.
_The Figure of Eight_ (_Diloba caeruleocephala_)
The fore wings are brownish grey. Near the middle of the wing, but
nearer the costa than the inner margin, are two whitish spots that
resemble the figure 8. The hind wings are dull brownish grey, with
darker wing rays, and a dark spot near the centre.
[Illustration: FIG. 141.--THE FIGURE OF EIGHT.]
This moth is common in all parts, and flies during September.
The caterpillar emerges from the egg in spring, and is fully grown in
May or June. It is of a very pale colour--yellowish or greenish--with a
broad and broken yellow stripe down the back, and a bluish or greenish
stripe on each side. Its head is blue (hence the specific name) with two
black spots. It feeds on the hawthorn (_Crataegus oxyacantha_) and
various fruit trees; and on the twigs of these (especially the hawthorn)
the little clusters of eggs may be seen during the winter.
Family--LEUCANIIDAE
In this family we have a number of rather small moths, with, generally,
no markings on their wings, save, perhaps, a few dots or streaks.
Their larvae feed principally on grasses and reeds, and change to the
chrysalis state either in a cocoon among the food plants, or under the
surface of the ground.
Several of these insects are very common, and most of them abound in
fens and marshes.
_The Brown-line Bright-eye_ (_Leucania conigera_)
The fore wings are yellowish brown. The 'brown line' is a transverse
line parallel with the hind margin, and distant from it about one-fourth
the length of the wing. Another dark brown line, describing a sharp
bend, passes across the wing near the base. The 'bright eye' is a light
spot just outside the centre of the wing, nearer the costa than the
inner margin. This is another of those marks that occur very constantly
in the wings of the _Noctuae_. It lies beyond the _orbicular_ spot, and
is usually somewhat kidney-shaped, and is consequently named the
_reniform_.
[Illustration: FIG. 142.--THE BROWN-LINE BRIGHT-EYE.]
The caterpillar is yellowish or greyish, with a pale dorsal line edged
with black. On each side of this is a broad black line, below which is a
yellow line edged with black, then a whitish stripe, next a yellow line
edged with black on the upper side, and lastly a broad brownish line,
just above the spiracles, edged with black on both sides. It feeds on
couch grass (_Agropyron repens_) and various other grasses, and is fully
grown in May.
The moth flies in July and August, and is common throughout the United
Kingdom.
_The Smoky Wainscot_ (_Leucania impura_)
This same genus includes a number of moths, very similar in general
appearance, and popularly known as the 'Wainscots.' Of these we shall
take two examples.
The first is the Smoky Wainscot, so called from the dark smoky tint of
the hind wings. Its fore wings are wainscot brown, with lighter rays;
and they each have three black dots arranged in the form of a triangle,
one in the centre, and the other two between this and the hind margin.
[Illustration: FIG. 143.--THE SMOKY WAINSCOT.]
The caterpillar is yellowish, with a fine white line down the back. The
spiracles are red, and inclosed in black rings. It feeds on sedges
(_Carex_) from March to May.
The moth is on the wing from June to August.
_The Common Wainscot_ (_Leucania pallens_)
This moth is very much like the last. The fore wings exhibit the same
three dots, but it may be distinguished by the pale colour of the hind
wings.
[Illustration: FIG. 144.--THE COMMON WAINSCOT.]
The larva feeds on various grasses in March and April. It is of a
pinkish grey colour, with two rows of black dots on each side of the
dorsal line. There are also three stripes along the side, two of which
are brownish and the other grey.
The moth is common everywhere from June to August.
_The Bullrush_ (_Nonagria arundinis_)
Our last example of this family is the Bullrush, a moth that is common
in all parts where its food plant abounds.
It is much larger than the two preceding species. The fore wings are
yellowish brown, with three parallel transverse lines of black spots.
The hind wings are whitish, tinged with brown near the hind margin.
[Illustration: FIG. 145.--THE BULLRUSH.]
The caterpillar is of a dull pinkish colour, with a shining brownish
plate on the second segment. The spiracles are black. It feeds inside
the stems of the reed-mace (_Typha latifolia_), and changes to a
chrysalis within the gallery it has excavated, after making a hole
through which it can escape when it attains the perfect form.
The caterpillar may be found in May and June, the chrysalis in August,
and the moth in September.
Family--APAMEIDAE
This large family contains no less than forty-four British species, many
of which are exceedingly common; and of the others only about half a
dozen can be regarded as rare.
Most of them are of medium size, and with one or two exceptions are
dressed in rather dingy garbs; but, although the ground colours are
dull, the various markings of the wings are sharply defined. They may be
searched for on palings and the bark of trees by day, at which time they
repose with their wings sloping like the sides of the roof of a house.
Some are easily attracted by lights, and others partake freely of the
entomologist's 'sugar.'
The larvae have small retractile heads, and feed on low-growing plants,
keeping themselves well concealed on the lower leaves close to the
ground.
_The Frosted Orange_ (_Gortyna Ochracea_)
We commence with one of the brightest members of the family, the Frosted
Orange. Its fore wings are dark yellow or ochreous, with distinct brown
markings, the chief of which are two broad transverse bands. The
orbicular spot is pale yellow and very distinct. The hind wings are
dingy yellow. This moth flies from July to September, and is easily
attracted by a light at night. It is common everywhere.
[Illustration: FIG. 146.--THE FROSTED ORANGE.]
The larva is yellow, dotted with black, with a brownish plate on the
second segment. It feeds inside the stems of a number of plants,
including the marsh thistle (_Cnicus palustris_), musk thistle (_Carduus
nutans_), burdock (_Arctium minus_), mullein (_Verbascum thapsus_),
foxglove (_Digitalis purpurea_), and elder (_Sambucus nigra_). When
about to change to the chrysalis it eats _nearly_ to the surface of the
stem, leaving only a very thin and transparent layer of the epidermis to
cover the hole through which it is to escape when it becomes a moth.
The caterpillars are to be found in June, and the chrysalides in July.
_The Flame_ (_Axylia putris_)
This also is a pretty insect, but much smaller than _Ochracea_. It is
common in most parts, and may be seen flying in weedy and waste grounds
at dusk during June and July.
[Illustration: FIG. 147.--THE FLAME.]
The fore wings are pale pinkish brown, with dark brown along the costa,
and two patches of the same colour on the hind margin. There is also a
double line of small brown dots parallel with the hind margin.
The larva is brown, with one yellow and two white dots on each segment.
There is also a triangular dark patch on each of the fifth and sixth
segments. It feeds during August on the stinging nettle (_Urtica
dioica_), and various other low herbs.
_The Light Arches_ (_Xylophasia lithoxylea_)
The fore wings of this species are very light ochreous, with a light
brown patch on the middle of the costa, and patches of the same colour
along the hind margin; also a row of small black dots parallel with the
same margin. The hind wings are pale ochreous: they are brownish along
the hind margin, and have a light fringe.
[Illustration: FIG. 148.--THE LIGHT ARCHES.]
The moth is very common in waste places, and flies in June and July.
The caterpillar is of a dirty white colour, dotted with black, and has a
black head. It feeds on the roots of grasses in May.
_The Flounced Rustic_ (_Luperina testacea_)
The fore wings are greyish brown, with darker umber-brown markings.
These latter are variable, but the most conspicuous is a series of dark
crescent-shaped spots almost parallel with the hind margin, and
immediately outside these is a series of paler crescents.
[Illustration: FIG. 149.--THE FLOUNCED RUSTIC.]
The caterpillar is dull flesh-colour, with a brown head, and a brownish
plate on the second segment. It feeds on the stems of grasses.
The moth is common throughout the British Isles, and flies in August and
September.
_The Cabbage Moth_ (_Mamestra Brassicae_)
Whatever be your methods of moth collecting, you are sure to meet with
_Brassicae_ in abundance. They swarm round the insect hunter's sugar in
such numbers as to become a positive nuisance. They are also attracted
by light. During the day they may be seen at rest on palings. The
caterpillar is even better known, and with reason, for it is fearfully
destructive to our vegetables and even our flower beds. It burrows into
the hearts of cabbages, filling the galleries it makes with its
excrement, often leaving no very visible outward signs of its presence
within. But its ravages are by no means confined to cabbages. It eats
with more or less relish almost every vegetable and flowering plant of
our gardens, and is equally partial to the various herbs of the field.
[Illustration: FIG. 150.--THE CABBAGE MOTH.]
The fore wings of the moth are dingy brownish grey, marbled in a very
confused manner by darker markings. The _reniform_ spot is very
distinct, the orbicular less so. A light zigzag line runs parallel with
the hind margin. It flies in June and July.
The larva feeds later in the season, and changes to the chrysalis
beneath the soil in the autumn. It is of a dark grey colour, with a
darker line on the back, and a lighter one along the spiracles, which
are white.
_The Dot_ (_Mamestra Persicariae_)
The conspicuous white reniform spot on the very dark marbled fore wings
is always sufficient for the identification of this species.
This moth is out in June and July; and during the latter month lays its
eggs on the elder (_Sambucus nigra_), and the various low plants that
supply the larva with food.
[Illustration: FIG. 151.--THE DOT.]
The larva is greenish or greyish, sometimes with a reddish tinge, with a
light line down the back. The twelfth segment is humped, and there are
dark V-shaped marks on the back of segments five to twelve inclusive. It
is full grown in September, and burrows into the ground to undergo its
change to the chrysalis, in which state it remains throughout the
winter.
_The Rustic Shoulder-knot_ (_Apamea basilinea_)
The fore wings of this species are pale ochreous grey, with light brown
markings; and there is a short dark streak in the middle of the base,
from which feature the specific name (_Basilinea_) is derived. The hind
wings are of a similar colour, but shading into a dark smoke colour at
the hind margin.
[Illustration: FIG. 152.--THE RUSTIC SHOULDER KNOT.]
The caterpillars feed at first on the grains of wheat, on the ears of
which the moth deposits the eggs in June. At harvest time they remain
hidden among the husks, and are often threshed out in large numbers by
the blows of the flail. The cold weather soon overtakes them, and they
then spin a cocoon in which to pass the winter. On the approach of
spring they come out again, and feed by night on various low plants,
hiding themselves among the roots by day. In March they are full grown,
and change to brown chrysalides beneath the surface of the ground.
The moth flies in June, and is one of the commonest and most destructive
of our _Noctuae_.
_The Marbled Minor_ (_Miana strigilis_)
The next three genera (_Miana_, _Phothedes_, and _Celaena_) include seven
small moths known as the 'Minors.' The commonest of them is the Marbled
Minor, which is to be found in abundance everywhere during June and
July.
[Illustration: FIG. 153.--THE MARBLED MINOR.]
This species is very variable, but the fore wings are usually dark
brown, marbled with a lighter colour--white or grey. There is generally
an irregular white or pale grey band crossing the wings parallel with
the hind margin, and two white marks on the inner margin, halfway
between this band and the base. There is also a deep black blotch across
the middle of the wing.
The caterpillar is greyish or greenish with paler lines and black
spiracles. It feeds on grasses in March and April, and changes to a
chrysalis under the ground in May.
Family--CARADRINIDAE
There are only ten British species in this family, two of which are
rare; and most of the others are particularly dingy. The transverse
lines so often seen on the fore wings of Noctuae are generally well
marked. The larvae have short stiff bristles, and feed on low plants;
they undergo their changes in an earthen cocoon under the ground.
_The Mottled Rustic_ (_Caradrina Morpheus_)
We select as our type of this family the Mottled Rustic--a common moth
that may be procured from June to August. Its fore wings are brownish
grey, with darker lines and spots; the hind wings are almost white, but
darker at the tip.
[Illustration: FIG. 154.--THE MOTTLED RUSTIC.]
The caterpillar is brownish grey, with a row of triangular spots on each
side of the back. It is very sluggish, spending the greater part of its
existence among the roots of low plants. It feeds throughout the winter,
except during severe weather, and is full grown in April. The food
plants include teasels (_Dipsacus pilosus_ and _D. sylvestris_), hedge
bedstraw (_Galium Mollugo_), orpine (_Sedum Telephium_), sallows
(_Salix_), and various other plants.
The chrysalis may be dug out in May.
Family--NOCTUIDAE
A glance at our list of British _Noctuae_ (Appendix I) will show that
this family contains nearly fifty species and only three genera. It
includes several very common moths that frequent our gardens and are to
be met with during almost every summer evening ramble.
Most of the species are very dingy, but the half-dozen that comprise the
genus _Triphaena_ are characterised by the bright colouring of the hind
wings. The fore wings are narrow and more or less glossy, and overlap to
a greater or less extent when the insects are at rest; and the hind
wings are folded and completely hidden beneath them.
The larvae are rather thick and smooth, and generally of very dingy
colours. They feed on low plants, often confining their ravages to the
roots, and generally lie well concealed close to the ground or under the
surface.
The pupae are brown, smooth, and shining, and are usually inclosed in
earthen cocoons.
We shall briefly notice a few members of each of the three genera.
_The Turnip Moth_ (_Agrotis Segetum_)
This is another of those destructive insects that attack vegetable and
flower gardens, often doing so much damage to our crops as to become
quite a nuisance to cultivators.
The moth is decidedly dingy. Its fore wings are brown, clouded with a
darker tint. The hind wings are almost white, sometimes with a brown
hind margin.
[Illustration: FIG. 155.--THE TURNIP MOTH.]
In June it lays its eggs on the stems of young plants, generally very
close to the ground. As soon as the young caterpillars emerge they
commence feeding on the lower parts of the stems, or burrowing deeply
into the larger succulent roots. When the larvae have completed their
work of destruction in this way, they change to brown chrysalides in the
ground. Some undergo this change in October, and shortly after give rise
to a second brood of moths; but most of them remain in the caterpillar
state throughout the winter, and, contrary to the general rule with
hybernating larvae, continue to feed almost throughout the winter months,
and change to the chrysalis in the following May.
The caterpillar grows to a large size. It is of a greyish or greenish
colour, with a paler line on the back, a light brown line on each side
of this, black spots between these lines, and black spiracles.
_The Heart and Dart_ (_Agrotis Exclamationis_)
The destructive work of _Segetum_ is assisted by similar operations of
the Heart and Dart, the larva of which feeds voraciously on the roots of
several of our cultivated vegetables, though the present species does
not entirely confine its ravages to the farmer's crops, but attacks the
roots of many low-growing herbs.
The fore wings of the moth are light brown, generally with a reddish
tinge. The darker markings include a large and very distinct reniform
spot, a less distinct orbicular, and a conspicuous longitudinal blackish
streak near the base of the wing known as the _claviform_. Beyond the
reniform a curved and zigzag dark line crosses the wing. The hind wings
of the male are very pale, those of the female darker, with a whitish
fringe.
[Illustration: FIG. 156.--THE HEART AND DART.]
The moth flies from June to August, and is common everywhere. The
caterpillar feeds in the autumn, and reaches its full size in October;
but it is said to feed at intervals throughout the winter. Its colour is
dingy brown or grey, with paler lines on the sides. The spiracles are
black, and there are black dots on the sides.
_The Garden Dart_ (_Agrotis nigricans_)
This is another dingy moth, whose general appearance is so unattractive
that the tyro might be inclined to neglect it. But it must not be
omitted from our selection on that score, for our main object here is to
give the beginner an acquaintance with those species that are most
likely to be captured in the earlier part of his career, and this moth
is certainly one of those that may be described as 'abundant
everywhere.'
[Illustration: FIG. 157.--THE GARDEN DART.]
Its fore wings are dull dark brown, often tinged with red, and clouded
with black. The reniform spot is pale, the orbicular spot less distinct,
and between the two there is generally a rhomboidal dark spot. There is
also a short dark streak near the base of the wing, and a black spot
before the orbicular. The hind wings are pale, but smoky towards the
hind margin.
The caterpillar is brown and shining, with a fine pale line on the back,
and a double white stripe below the spiracles. It is also dotted with
black. It is exceedingly destructive, feeding on clovers (_Trifolium
pratense_ and _T. repens_) and various low plants in May and June.
The moth flies from June to August.
_The Flame Shoulder_ (_Noctua plecta_)
As our example of the next genus we take the Flame Shoulder, a rather
small moth, easily identified by the broad yellowish-white streak along
the costa of the reddish-brown fore wings. The orbicular and reniform
spots are margined with white, and a thin white streak runs from the
base of the wing to the former. The hind wings are white. This moth
flies in July, and is common throughout Great Britain.
[Illustration: FIG. 158.--THE FLAME SHOULDER.]
The caterpillar is reddish brown, with a slender line of white dots on
the back, and a similar line on each side. The body is smooth and
velvety, and is netted and dotted all over with dark brown. It feeds on
the lady's bedstraw (_Galium verum_), sweet woodruff (_Asperula
odorata_), and many other low plants; and is full fed early in July.
_The Lesser Broad Border_ (_Triphaena ianthina_)
We now come to the third and last genus (_Triphaena_) of this extensive
family, a genus which includes six interesting moths, with bright orange
or yellow hind wings. Of these we shall take three examples.
[Illustration: FIG. 159.--THE LESSER BROAD BORDER.]
The first of them--the Lesser Broad Border--has fore wings of a rich
reddish or violet brown, with paler markings. The hind wings are bright
orange, with a broad marginal band of black.
It is a common moth, particularly in the south-western counties, and
flies during July and August.
The caterpillar is of a dingy yellowish or greenish grey, with a light
line down the back, and two black spots on each side of segments nine to
twelve inclusive. It feeds throughout the winter by night on dead
nettles (_Lamium purpureum_ and _L. album_), primrose (_Primula
acaulis_), whitethorn (_Crataegus oxyacantha_), blackthorn (_Prunus
spinosa_), and various low plants; and may sometimes be seen in flower
gardens. It is full grown in April.
_The Lesser Yellow Underwing_ (_Triphaena Comes_)
This insect is very similar to the last, but is larger. The fore wings
are also of a greyish or ochreous brown, and the black margin of the
hind wings is proportionately narrower.
[Illustration: FIG. 160.--THE LESSER YELLOW UNDERWING.]
It is more abundant than _Ianthina_; in fact it is to be found
everywhere in plenty during the month of July.
The caterpillar is yellowish brown. On the back of each of the eleventh
and twelfth segments are two conspicuous dark marks. The spiracles are
white, and below them is a pale brown stripe. It feeds on the foxglove
(_Digitalis purpurea_), chickweed (_Stellaria media_), thrift (_Armeria
maritima_), and other low plants in the autumn, hybernates during the
winter, and attacks sallows (_Salix Caprea_ and _S. cinerea_) and
whitethorn (_Crataegus oxyacantha_) as soon as the buds appear in the
spring. It is full grown in April, and then changes to a chrysalis on
the surface of the earth.
_The Large Yellow Underwing_ (_Triphaena Pronuba_)
This is by far the commonest moth of the genus, and may be found
everywhere, in town and country, from June to August. It is represented
on Plate XI (fig. 1), but its fore wings are very variable, sometimes a
cold dingy grey, but often of an exceedingly rich and warm brown. On the
costal margin, not far from the tip, there is always a small black spot,
which will serve to distinguish it from _Comes_.
The caterpillar (fig. 21) feeds throughout the winter on the roots of
almost every plant in our gardens; and, during the warmer weather of the
autumn and spring, on stems and leaves. It is full grown early in the
summer, and then changes to a chrysalis in the ground. Its colour is
dirty yellowish or greenish grey, with a row of dark spots on each
side.
Family--AMPHIPYRIDAE
_The Gothic_ (_Mania typica_)
The above family contains only four British species, two of which we
shall briefly consider.
[Illustration: FIG. 161.--THE GOTHIC.]
The first of these is the Gothic--a very common moth that may be seen
everywhere about midsummer. Its fore wings are brown with darker
marblings, and there are numerous lighter markings which may be easily
made out by reference to the accompanying woodcut.
The caterpillar is smooth and velvety, of a dull brown or greenish
colour, with darker dorsal and side stripes. The latter are crossed
obliquely by a series of whitish lines. It feeds on fruit and other
trees in clusters when very young in early autumn, and afterwards
descends and feeds on low plants. It hybernates in the winter, and feeds
again on low plants in the spring. When full grown it burrows into the
soil to undergo its changes.
_The Old Lady_ (_Mania Maura_)
This fine moth is so very different from the last in appearance that the
reason for placing the two in the same genus is not apparent till the
earlier stages and life history have been studied. All its wings are
very deep brown; the front pair has a darker band containing the
orbicular and reniform spots, and the hind pair a lighter band across
the middle.
[Illustration: FIG. 162.--THE OLD LADY.]
It is a common moth, often to be found at rest by day in outhouses and
sheds. It flies in July and August.
The caterpillar is dark purple or umber brown, with darker and lighter
markings. It feeds in the autumn on fruit trees, and hybernates during
the winter. In the spring it feeds again on low plants, and changes to a
chrysalis in May under the ground.
Family--ORTHOSIIDAE
This is a large family of over thirty species, most of them of rather
small size, which make their appearance, with two exceptions, either in
early spring or in late autumn, often attracted in the former season by
the sallow blossom, and in the latter by ivy bloom.
Several of them are very common insects, that are almost sure to be
taken by a young collector during his first season.
The fore wings of these moths are more or less pointed at the tip, and
the usual lines and spots are generally distinct. The males may be
distinguished from the females by their antennae, which are always more
or less ciliated.
The caterpillars are smooth and velvety, and feed by night; and the pupae
are inclosed in cocoons constructed of earth and silk.
_The Common Quaker_ (_Taeniocampa stabilis_)
Several of the species of the family are known popularly as Quakers, the
commonest of which--_Stabilis_--is abundant in all parts.
Its fore wings are grey, with generally either an ochreous or reddish
tinge. The orbicular and reniform spots are outlined with a paler
colour, and there is a pale transverse line parallel with the hind
margin, outside which is a row of indistinct black spots. The hind wings
are greyish brown.
[Illustration: FIG. 163.--THE COMMON QUAKER.]
The caterpillar is green and velvety, with a yellowish line on the back
and on each side; and a yellow band crosses the back of the twelfth
segment transversely. It feeds during June and July on oak (_Quercus
Robur_) and elm (_Ulmus campestris_), and changes to a chrysalis in
August on the surface of the ground. In this state it remains throughout
the winter, and the moth emerges in March or April.
_The Chestnut_ (_Cerastis Vaccinii_)
Unfortunately our space will not allow us to notice the whole of even
the very common moths, so, passing over a few with great reluctance, we
come to the familiar Chestnut, which may be seen at large in October and
November, and sometimes even in December, and again appears, after a
rather short period of hybernation, in February and March.
[Illustration: FIG. 164.--THE CHESTNUT.]
The fore wings are reddish brown, with darker wavy lines. The orbicular
and reniform spots have pale outlines, and the lower half of the latter
is very dark grey. The hind wings are smoky grey, with generally a pale
band beyond the middle.
The caterpillar is dark brown, with very indistinct lighter lines. The
spiracles are black, and inclosed in a yellowish grey stripe. It feeds
during June and July on the elm (_Ulmus campestris_), oak (_Quercus
Robur_), and sallow (_Salix caprea_), and various low plants.
_The Pink-barred Sallow_ (_Xanthia Flavago_)
This moth is not nearly so common as the preceding species, but has been
taken more or less in all parts of England.
Its fore wings are orange yellow, with purplish markings arranged as
represented in fig. 165. The hind wings are yellowish white.
[Illustration: FIG. 165.--THE PINK-BARRED SALLOW.]
The caterpillar is brown, with a lateral stripe formed by numerous red,
yellow and white dots. It feeds on sallow (_Salix caprea_) and various
low plants.
It is full grown in June, and the moth appears in September.
Family--COSMIIDAE
_The Dun-bar_ (_Calymnia trapezina_)
Our example of this family is the Dun-bar, common everywhere during July
and August.
Its fore wings are greyish ochreous, with a darker band across the
middle. On each side of this band is a white line margined with dark
grey, and there is a row of black spots along the hind margin. The hind
wings are smoky brown, becoming paler towards the base.
[Illustration: FIG. 166.--THE DUN-BAR.]
The caterpillar feeds on oak (_Quercus Robur_), hornbeam (_Carpinus
Betulus_), and birch (_Betula alba_), and may be found in abundance
during May and June. It is green, with dark spots, and white lines on
the back and sides. Although it partakes of the leaves of the
above-named trees, yet its chief food seems to be other caterpillars,
for it devours these with a savage greediness that is simply
astonishing. It will chase an unfortunate caterpillar, seize it by the
neck with a fatal grip, and rapidly devour it. Its chief prey seems to
be the larva of the Winter Moth (_Brumata_).
Family--HADENIDAE
Nearly fifty British _Noctuae_ are included in the family _Hadenidae_.
They are of variable dimensions, and differ much in the brightness of
their colours, some being very dingy, and others gaily tinted. Their
antennae are rather long; and when at rest the wings slope from the back
like the sides of a roof.
The larvae are smooth, and not very thick; and there is sometimes a hump
on the twelfth segment. The pupae are brown and shiny, and are inclosed
in earthen cocoons beneath the surface of the soil.
_The Broad-barred White_ (_Hecatera serena_)
Although not gaily coloured, this is a pretty little moth, there being a
bright contrast between the white ground and the grey markings of the
wings. It is common in the south of England, and seems to be plentiful
in and around London.
[Illustration: FIG. 167.--THE BROAD-BARRED WHITE.]
The caterpillar is of a dingy greenish colour, with a yellowish stripe
on each side of the back; and there are two distinct dots on the back of
each segment. It feeds during July and August on sow-thistles (_Sonchus
oleraceus_ and _S. arvensis_), sleepwort (_Lactuca virosa_), and
hawkweeds (_Hieracia_).
The moth flies in June and July.
_The Marvel-du-jour_ (_Agriopis Aprilina_)
The Marvel-du-jour is decidedly a beautiful moth--quite an exception
among the _Noctuae_ in this respect, and it is withal both common and
widely distributed. We need not describe it, since it is represented on
Plate XI (fig. 2), and can hardly be mistaken for any other species.
The caterpillar is dull green, often tinged with red. The dorsal line is
broad and dark, and interrupted by a series of very light lozenge-shaped
spots. It feeds on the oak in May and June, and is full grown in the
latter month. It then burrows into the earth at the foot of the tree,
and there constructs a fragile earthen cocoon previous to changing to a
chrysalis.
From July to September the chrysalides may be obtained in plenty by
breaking up the sods at the roots of oaks, and the perfect insect may be
found toward the end of September and throughout October.
_The Small Angle Shades_ (_Euplexia lucipara_)
This pretty little moth is represented in fig. 3 of Plate XI. It is very
common throughout the country, and may be seen in June and July.
The caterpillar is thickest on the twelfth segment, and gradually tapers
from this towards the head. Its colour is pale green, with a white
stripe just below the spiracles, which are black. On each side of the
back are a number of oblique lines, which meet in the middle line, thus
forming a series of V-shaped marks pointing towards the tail. It feeds
on the common bracken fern (_Pteris aquilina_), foxglove (_Digitalis
purpurea_), and the male fern (_Lastraea Filix-mas_), in August and
September.
_The Angle Shades_ (_Phlogophora Meticulosa_)
[Illustration: FIG. 168.--THE ANGLE SHADES.]
This moth is so common and so widely distributed that it is almost sure
to be taken by the young collector during his first season. Its wings
are scalloped on the hind margin, and their colour light ochreous, often
tinged with pink or olive green, and marked with dark brown as shown in
the illustration. It is double brooded, the first brood appearing in May
and June, and the second in September and October.
The caterpillar is green or olive brown, and thickly covered with white
spots. It feeds on groundsel (_Senecio vulgaris_) and many other low
plants, the first brood throughout the winter from November to April,
and the second in July and August.
_The Grey Arches_ (_Aplecta nebulosa_)
The fore wings of this moth vary from greyish white to a rather dark
smoky tint. The markings are of a darker colour, and are also subject to
considerable variation. The orbicular and reniform spots are large, and
paler than the ground colour; and several zigzag or scalloped lines,
more or less distinct, cross the wings transversely.
[Illustration: FIG. 169.--THE GREY ARCHES.]
The larva is brown, with a lighter line down the back. On each of the
segments five to eleven is a dark lozenge-shaped spot, bisected by the
dorsal line; and on the second segment is a shining plate and a
triangular mark. It feeds on the dock (_Rumex_), and various other low
plants during the autumn; and, after its hybernation, on the leaves of
the sallow (_Salix Caprea_), birch (_Betula alba_), and whitethorn
(_Crataegus oxyacantha_). It is full grown in May, when it burrows into
the ground to undergo its metamorphoses.
The moth flies during June and July, and is common in nearly every part
of Great Britain. Large numbers may be obtained by searching fences and
tree trunks about midsummer.
_The Shears_ (_Hadena dentina_)
The Shears is another very common moth of the same family. The ground
colour of the fore wings is very variable, but is generally a lighter or
darker shade of grey. Sometimes, however, it has a very decided brownish
tinge. Across the centre of the wing is a darker band, wider on the
costal side, containing the orbicular and reniform spots, as well as a
light patch beneath them, and bordered on each side by a pale zigzag
line. There is another similar line near to and parallel with the hind
margin. The hind wings are smoky grey or smoky brown, darker towards the
hind margin.
[Illustration: FIG. 170.--THE SHEARS.]
The caterpillar is greyish, and has a series of triangular black spots
along each side of the back. It feeds on the roots of the dandelion
(_Taraxacum officinale_), and changes to a peculiar spiny chrysalis.
The perfect insect appears to be abundant everywhere, and is on the wing
in June and July.
_The Bright-line Brown-eye_ (_Hadena oleracea_)
Every collector is sure to meet with this insect during his first
season. The moth is abundant everywhere in June, the caterpillar may be
found feeding in almost every waste and weedy spot in August and
September, and the chrysalis is certain to be turned over by the pupa
digger.
[Illustration: FIG. 171.--THE BRIGHT-LINE BROWN-EYE.]
The fore wings of the perfect insect are reddish brown. The orbicular
spot is usually very indistinct, being of almost exactly the same tint
as the ground colour, and surrounded by a very fine whitish line. The
reniform is generally more conspicuous, a portion of it being of a light
ochreous colour. Near the hind margin, and parallel with it, is a white
line, bent sharply into the form of a W, just on the anal side of the
middle.
The hind wings are greyish brown in the base, and dark smoke colour
towards the margin.
The caterpillar is pale green or brown, dotted with both black and
white, and adorned with a bright yellow line just below the spiracles.
It feeds on the nettle (_Urtica dioica_), dock (_Rumex_), and many other
low plants; and, according to some observers, on the elm (_Ulmus
campestris_).
Family--XYLINIDAE
The next family--_Xylinidae_--contains twenty British species, several of
which are local, but two or three are abundant and widely distributed.
The transverse lines that so often cross the wings of the _Noctuae_ are
nearly or entirely absent in this family, and longitudinal lines take
their place. When the insects are at rest the wings are folded rather
closely, the outer pair being arranged like a roof with a very gentle
slope. The bodies of the perfect insects are very stout, particularly in
the thorax, and thus present a rather powerful appearance.
The larvae are smooth, and generally brightly coloured, and feed
principally on low plants. The chrysalides are generally inclosed in
cocoons on or beneath the ground, and are often provided with spines or
bristles on the under side.
We shall select two members of this family.
_The Early Grey_ (_Xylocampa Areola_)
One of the first of the _Noctuae_ to greet us in the spring is the Early
Grey, which may be found resting on fences in April, and, if the season
is mild, in March.
[Illustration: FIG. 172.--THE EARLY GREY.]
Its fore wings are light grey, often tinged with rose pink, and marked
with dark grey. The orbicular and reniform spots are very distinct, and
surrounded by a pale line; they are both united at their lower edges.
Along the hind margin is a series of dark spots. The hind wings are pale
yellowish grey, with a darker central spot, a central transverse darker
line, and a darker line along the hind margin.
The caterpillar is yellowish grey. The dorsal line is lighter, and
passes through a brownish spot on the eighth segment. It feeds on the
honeysuckle (_Lonicera Periclymenum_) in July and August, being full
grown towards the end of the latter month.
_The Shark_ (_Cucullia umbratica_)
The Shark is a very common moth, to be found everywhere on palings in
June, but the colour of its wings so closely resembles that of oak and
other light-wood fences that detection is not so easy as with most other
moths.
[Illustration: FIG. 173.--THE SHARK.]
The fore wings are grey, and marked with longitudinal dark lines, the
principal of which is a line from the middle of the base to about the
centre of the wing. The wing rays are also darker than the ground
colour. The hind wings are greyish white or brownish grey.
The caterpillar is very dark brown, with orange spots on the back and
along the spiracles. It feeds on sow-thistles (_Sonchus oleraceus_, _S.
palustris_, and _S. arvensis_) and sleepwort (_Lactuca virosa_) at night
from July to September, and hides during the daytime among the leaves
that lie close against the ground. When disturbed it does not roll into
a ring or feign death like many others of its kind, but wriggles about
most vigorously as if to repel its foe.
Family--GONOPTERIDAE
_The Herald Moth_ (_Gonoptera Libatrix_)
The above-mentioned family is so called on account of the angular
margins of the wings, especially the fore pair. It contains only one
British species, the Herald (Plate XII, fig. 1), a moth that is common
everywhere in August and September. It hybernates in the perfect state,
and the hybernated specimens may be seen in the spring time, from March
up to the end of May or the beginning of June.
Its fore wings are reddish grey, thickly spotted and streaked with
brown. Transverse whitish lines divide the base into three parts of
nearly equal widths. The basal and central divisions are tinged with
orange; and there is a small white spot in the base close to the thorax,
also another near the centre of the wing. The hind wings are brownish
grey.
The caterpillar is green and velvety, with a whitish stripe on the side,
and yellow spiracles. It feeds on willow (_Salix alba_) and sallow
(_Salix caprea_); and when full grown, about the end of June, it spins a
white silken cocoon between leaves of its tree, and changes to a very
dark chrysalis.
Family--PLUSIIDAE
The most peculiar feature of the moths of this family is the tufts of
hair that stand up perpendicularly on the top of the thorax. The abdomen
also is crested, and the fore wings of several species have smooth
patches that display a brilliant metallic lustre.
Most of the larvae may be described as semi-loopers, for their claspers
number only three pairs, and when they walk their backs are considerably
humped, somewhat after the fashion of the _Geometrae_. Some of them
further imitate the _Geometrae_ in their position of rest, holding on by
their claspers only, with body straightened out at an angle with the
leaf or twig on which they support themselves.
Unlike the majority of the _Noctuae_, they do not descend to the ground
when about to change, but spin a silken cocoon among the food plants.
_The Burnished Brass_ (_Plusia Chrysitis_)
One of the commonest of the _Plusiidae_ is the Burnished Brass, so called
on account of the large patches of bright golden green on the fore
wings. The hind margin of these wings is very gracefully curved, and
bordered with brown. A brown blotch fills the base of the wing, and the
remaining area is of a beautiful metallic greenish yellow, broken by two
large brown blotches, one on the costal and the other on the inner
margin, which closely approach each other and sometimes meet.
[Illustration: FIG. 174.--THE BURNISHED BRASS.]
This moth is very common everywhere, and is one of the frequent visitors
to our flower gardens from June to August.
The caterpillar is thickest at the twelfth segment, and tapers from this
point. Its colour is pale green. It has no longitudinal stripes on the
back, but each segment is adorned with four or six oblique white marks.
Just above the spiracles is a white stripe. It feeds on the dead nettle
(_Lamium album_), stinging nettle (_Urtica dioica_), and burdock
(_Arctium minus_), and is full grown in June.
_The Silver_ Y (_Plusia Gamma_)
Our second example of this family is the Silver Y, which may be found in
abundance everywhere from June to October. Its fore wings are of a shiny
grey colour, beautifully marbled with a rich dark brown; and just below
the orbicular spot is a brilliant silvery spot, in form something like
the Greek letter [gamma] placed obliquely. The base of the hind wings is
grey; along the margin is a broad and dark smoky brown band, and the
fringe is very light grey, barred with the dark tint of the band. This
moth is commonly driven out of its hiding places among low plants as we
walk in waste places, and when thus disturbed it takes a short and rapid
flight, generally disappearing so suddenly among the herbage that it is
difficult to locate it correctly.
[Illustration: FIG. 175.--THE SILVER Y.]
The caterpillar is thickest at the twelfth segment, and tapers gradually
from this point towards the head. Its body is green, with several thin
longitudinal white stripes, and a thin yellow stripe along the
spiracles. It may be found from June to October, feeding on many kinds
of low plants.
Family--EUCLIDIIDAE
_The Mother Shipton_ (_Euclidia Mi_)
Passing over a few small and less important families, we come to the
_Euclidiidae_, which contains only two British moths. One of these is the
Mother Shipton, a very common insect that flies in June.
The fore wings of this species are very dark brown with whitish
markings. The latter include a peculiarly tortuous line, the character
of which will be made out more easily from our illustration (Plate XI,
fig. 4) than from a written description. The hind wings are also very
dark brown, and rather prettily spotted with an ochreous tint.
The caterpillar is pale grey, with four white stripes, and has only
three pairs of claspers. It feeds in May on clovers (_Trifolium
pratense_ and _T. repens_) and other plants.
Family--CATOCALIDAE
This family contains only four British species, but these few are very
striking moths. They are of large size; and, unlike the _Noctuae_
generally, the chief adornment is reserved for the under wings. When at
rest, the outer or fore wings completely hide the other pair, and then
their general appearance is dull, though if closely examined it will be
observed that these outer wings are really beautifully marbled with
shades of grey.
The caterpillars of this family are very peculiar creatures. Their
bodies are convex above and flattened beneath; and if disturbed as they
rest on the bark of a tree, instead of leaving their hold and rolling
into a ring like so many other larvae of _Noctuae_, they apply themselves
the closer, and hold on as if to defy our attempts to remove them.
Another peculiarity of these larvae is the possession of fleshy
projections along the sides, just above the legs. They feed on the
leaves of trees, and when about to rest they descend to the trunk, and
there remain protected by their imitative colouring, detection being
rendered even more difficult by the close application of their flattened
under surface to the bark. Before changing to the chrysalis state, they
spin a light cocoon among the leaves or on the bark.
_The Clifden Nonpareil_ (_Catocala Fraxini_)
This is the largest of the family, and, indeed, of all British _Noctuae_.
The fore wings and thorax are light grey, dotted and marbled with darker
grey (see fig. 5, Plate XI); and the thorax and abdomen are banded with
black and greyish blue.
The young entomologist can hardly expect to meet with this fine insect,
for it is very rare, and it is only occasionally that a specimen is seen
in Britain; but its characteristics are so striking that we have
endeavoured to find it a place here. Reputed British specimens of
_Fraxini_ command the price of a few pounds each, but specimens from the
other side of the Channel may be obtained for a few pence. With such
rarities we should advise a young entomologist to purchase the foreign
specimen rather than adopt the two other alternatives--give an
exorbitant price for a supposed Britisher, or else remain a stranger to
the gem, but all foreign specimens should be labelled according to their
nationalities.
_The Red Underwing_ (_Catocala Nupta_)
The other three members of the family are very similar in appearance,
the fore wings of all being marbled with shades of grey, relieved by
touches of black and brown; and the hind wings, red or crimson, give the
popular names to the species.
The Red Underwing flies in August and September, and is common in the
southern counties of England, as well as in some of the midland
counties; it may be often seen flying by day around willows.
[Illustration: FIG. 176.--THE RED UNDERWING.]
The caterpillar is similar in form to that of _Fraxini_, and when at
rest by day on the bark of its tree it is very difficult to detect, so
closely does it apply itself to the surface, and so perfectly does it
imitate the colour of its surroundings. It feeds on the crack willow
(_Salix fragilis_), sallow (_S. alba_), poplar (_Populus_), and plum
(_Prunus_), and is full grown in June.
_The Dark Crimson Underwing_ (_Catocala Sponsa_)
This beautiful insect is represented on Plate XI (fig. 6). It will be
observed that the black band crossing the centre of the hind wing is
rather broad and sharply bent--an important feature, since it is the
most serviceable distinguishing mark between this species and the Light
Crimson Underwing (_C. Promissa_).
The caterpillar is similar in form and habits to those of _Fraxini_ and
_Nupta_, and feeds on the oak. It is full fed about the beginning of
June, when it changes to a chrysalis between leaves which it has spun
together with silk.
The moth flies in July and August, and is common only in certain oak
woods of the southern counties. It is particularly abundant in the New
Forest, where scores may be taken in a single night by judicious
sugaring.
There yet remain a few small families of the _Noctuae_, but we must leave
them in order that we may give a proportionate share of our space to the
other great division of the larger moths--the _Geometrae_.
CHAPTER XX
_GEOMETRAE_
We have already referred (page 28) to caterpillars that walk by a
series of strides, alternately looping and extending their long and
slender bodies. It is this peculiar characteristic of the larvae of
the present division that suggested the name _Geometrae_--a term that
signifies 'earth-measurers,' for they appear to measure the ground
over which they travel in terms of their own length. We have also
dealt with the peculiarities of structure in the case of these
caterpillars--peculiarities which adapt them to this mode of
progression; and we have now to make a selection from the various
families of this important division for a more detailed description.
The _Geometrae_ include nearly three hundred species and sixteen
families. The moths have slender bodies and full wings, and generally
rest with the latter outspread. A few, however, repose with wings erect
like the butterflies, and a small number conceal their hind wings after
the manner of the _Noctuae_.
Family--UROPTERYGIDAE
_The Swallow Tail_ (_Uropteryx sambucaria_)
Our first family--_Uropterygidae_--has only one British representative,
and that is the well-known Swallow Tail, so common in gardens and among
hedgerows in the south of England. This species is shown on Plate XII
(fig. 2), and the insect is so readily identified by the conspicuous
'tails' on the hind wings that no written description will be necessary.
The caterpillar is a most peculiar and interesting creature. Its colour
is very variable, being either brown, olive, ochreous, or reddish; and
it is notched or humped in such a manner that it exactly resembles a
twig. This strange imitation is rendered still more remarkable by the
attitude assumed by the caterpillar when at rest. It fixes itself to a
twig by means of its two pairs of claspers, with its body standing out
at an angle in a perfectly straight posture; but its head is always
supported by means of a very slender and almost invisible silk fibre. It
feeds on a number of plants and trees, including elder (_Sambucus
nigra_), blackthorn (_Prunus spinosa_), whitethorn (_Crataegus
oxyacantha_), bramble (_Rubus fruticosus_), honeysuckle (_Lonicera
Periclymenum_), and forget-me-not (_Myosotis arvensis_). It may be found
feeding in the autumn, or hybernating in the crevices of the bark of
trees in winter. In April or May it comes out again; and in June, in
which month it is full grown, it binds together some fragments of
leaves, and forms them into a little swinging hammock in which it
changes to a brown chrysalis spotted with black.
Just at this time it seems to be particularly sensitive. In the
caterpillar state it will strongly resent any kind of disturbance, and
will give a blow to an intruder by suddenly swaying its body right and
left; and while in its hammock a gentle irritation, such as a puff of
wind from the mouth, will set it wriggling in a furious manner.
Family--ENNOMIDAE
This family contains about twenty species, several of which rank among
the commonest as well as the most beautiful of the _Geometrae_. Their
wings are more or less angulated; and the antennae are generally
pectinated in the males.
The larvae are generally humped and twig-like; and, as in the last
species, the semblance is increased by the position they assume when at
rest. The number of limbs varies from ten to fourteen, but where the
claspers exceed two pairs, the additional two or four, as the case may
be, are seldom used in walking.
_The Brimstone Moth_ (_Rumia luteolata_)
As soon as the warm evenings of May set in, this lively and bright
little moth may be seen flitting about among our hedges at sunset; and
it continues with us throughout the whole of the summer, but is
particularly plentiful during the month of June.
The moth itself need not be described, since it is shown on Plate XII
(fig. 3); but the caterpillar (fig. 25) must receive a passing notice.
It varies considerably in colour, being either green, brown, or marbled
with a mixture of shades of both these colours. It has a hump on the
back of the seventh segment, and two more on the ninth, and possesses
four pairs of claspers. It feeds on whitethorn (_Crataegus oxyacantha_),
blackthorn (_Prunus spinosa_), and the apple (_Pyrus Malus_), and may be
found on these trees throughout the summer.
Some believe that there are three successive broods of this insect each
year, but it is doubtful whether this is invariably the rule, since both
the moth and its larva are to be found without intermission throughout
the season.
_The Light Emerald_ (_Metrocampa margaritaria_)
All the wings of this moth are very pale green, and crossed with a white
band which is bordered with a darker green on the inner side. The fore
wings have an additional transverse line just halfway between the former
and the base, but this one is not so distinct. It flies in July, and is
very widely distributed, and in some parts is very abundant.
[Illustration: FIG. 177.--THE LIGHT EMERALD.]
The caterpillar feeds in September, and again in May, after hybernation,
on several of our forest trees, including the oak (_Quercus Robur_), elm
(_Ulmus campestris_), birch (_Betula alba_), and beech (_Fagus
sylvatica_). It is of a dingy olive colour, with a dark dorsal line, on
each side of which is a row of white spots; and it has three pairs of
claspers.
_The Scalloped Oak_ (_Crocallis elinguaria_)
This species is common and widely distributed, and may be seen flying at
dusk towards the end of July and throughout August. It is represented in
fig. 4 of Plate XII. The antennae of the male are strongly pectinated;
those of the female are simple.
The caterpillar may be found in the autumn, and again in spring, feeding
on the honeysuckle (_Lonicera Periclymenum_), whitethorn (_Crataegus
oxyacantha_), blackthorn (_Prunus spinosa_), beech (_Fagus sylvatica_),
and various fruit trees. It is full grown in June, when it turns to a
chrysalis in a cocoon spun between leaves or moss on or near the ground.
It is of a greyish-brown or greyish-purple colour, and looks very like a
piece of twig.
_The August Thorn_ (_Eugonia quercinaria_)
Our last example of this family is the August Thorn, represented in the
accompanying woodcut. The fore wings are ochreous yellow, crossed by two
nearly parallel lines of dark brown. In order to distinguish between
this and one or two similar species it must be observed that both these
lines are angulated near the costa, the inner one very sharply so; and
between the two is a distinct brown spot near the costal margin. The
hind wings are paler, and are crossed by an indistinct darker line. The
antennae of the male are strongly fringed; those of the female are
simple.
[Illustration: FIG. 178.--THE AUGUST THORN.]
The moth is very common in August and September, and is readily
attracted by lights in the evening.
The larva is grey, marbled with reddish brown. It has three small humps
on each of the sixth and seventh segments, two on the twelfth, and one
larger one on the ninth. It feeds on the oak and various other trees
during the month of June.
Family--AMPHIDASYDAE
The seven British species of the family _Amphidasydae_ are generally to
be distinguished by their rather stout abdomens, and the long shaggy
hair that covers their thoraces. The antennae of the males are
pectinated, and those of the females simple; and in three cases the
latter sex is wingless.
The caterpillars have long and slender twig-like bodies, and are never
provided with more than two pairs of claspers. The chrysalides terminate
behind in a sharp spine, and are always to be found buried in the soil.
_The Brindled Beauty_ (_Biston hirtaria_)
Early in April, and sometimes in March, this moth may be seen in
abundance, resting on the lime trees in and around our towns. In fact,
so strongly marked is its partiality to the haunts of man in the
neighbourhood of our great metropolis that it has received the name of
the Cockney. The male is represented in fig. 5 of Plate XII, and the
female may be distinguished from it by her simple antennae and larger
body.
The caterpillar is coloured with alternate bands of dark purple brown
and reddish brown. There is a yellow band on the front of the second
segment, a row of yellow spots on each side, and two little bright
yellow warts on the back of each segment. It feeds by night on lime
(_Tilia vulgaris_), elm (_Ulmus campestris_), and various fruit trees,
and often appears in such numbers that the foliage is almost completely
devoured. During the daytime it may be seen resting on the bark, almost
invariably fixed longitudinally on the trunk, where it looks like a
natural ridge of the bark which it so closely resembles in colour. It
may be found in June and July, and in August it changes to a chrysalis
at the foot of its tree, just below the surface of the soil.
_The Peppered Moth_ (_Amphidasys betularia_)
Although this common species displays no bright tints, yet it is
prettily marked, its whitish wings being peppered and blotched all over
with black or very dark brown. It flies in May and June, later than any
other species of the family, and may generally be found on fences and
tree trunks during the day.
[Illustration: FIG. 179.--THE PEPPERED MOTH.]
The colour of the caterpillar is very variable--drab, grey, green, or
brown; but it may be known by the deep notch in the middle of the head,
and the arrangement of its 'humps.' These latter are only small reddish
or whitish projections, of which there is one on each side of the fifth,
sixth, seventh, eighth, tenth, and eleventh segments; also two on the
back of the ninth and twelfth. It feeds in August and September on a
large number of trees, including, in fact, nearly all our commonest
forest and fruit trees. In September it enters the soil to undergo its
change to the chrysalis.
Family--BOARMIIDAE
In the next family--_Boarmiidae_--there are about twenty British members,
most of which are very pretty moths. They differ generally from the last
family in that their bodies are more slender, and although some of them
bear a resemblance to species of the family _Ennomidae_, their wings are
not angulated. In several cases the fore and hind wings are both
similarly marked, a feature very uncommon with moths.
The caterpillars of this family usually have humps on the sixth and
twelfth segments only, and have two pairs of claspers. The pupae are to
be found either on the ground, among leaves or moss, or beneath the
soil.
_The Waved Umber_ (_Hemerophila abruptaria_)
The most gaily coloured member of this family is the Waved Umber, shown
in fig. 6 of Plate XII. Like many other _Geometrae_, it rests on fences
and tree trunks by day with wings expanded so that all four are
displayed. It is on the wing in May and early June, and again in August,
and often frequents our gardens at dusk.
The caterpillar is very dark brown, with a white collar on the front of
the second segment. It feeds in June and July on privet (_Ligustrum
vulgare_) and the cultivated rose trees of flower gardens, and probably
also on the dog rose (_Rosa canina_). When full grown it spins a silken
cocoon in a fork of one of the twigs, and there undergoes its
metamorphoses.
_The Willow Beauty_ (_Boarmia gemmaria_)
Our second example of the _Boarmiidae_ is the Willow Beauty, the male of
which species is here illustrated. Its wings are brownish grey, marked
with dark brown lines and streaks. The female is generally larger than
the male, and has simple antennae. The moth is abundant throughout
England, and may be seen generally resting on fences and trees in June
and July.
[Illustration: FIG. 180.--THE WILLOW BEAUTY.]
The ground colour of the caterpillar is much the same as that of the
moth, and is marked with a similar darker tint. It has a yellowish line
along the spiracles, and is much like a piece of brownish twig. It feeds
on the oak (_Quercus Robur_), Birch (_Betula alba_), ivy (_Hedera
Helix_), and other trees, and may be found in September and October.
Family--GEOMETRIDAE
The next family contains eight moths, mostly of small size, all of which
have green wings, and are popularly known as the 'Emeralds.' In most
cases the male may be distinguished by its pectinated antennae.
There is no general characteristic by which we may know all the larvae,
but some have the head deeply notched.
_The Large Emerald_ (_Geometra papilionaria_)
This species is the largest of the family, and measures over two inches
when its wings are expanded. The colour is dull green, with whitish
bands and spots, the arrangement of which may be seen in our engraving.
[Illustration: FIG. 181.--THE LARGE EMERALD.]
The moth is out in July, and is common in most parts of England.
The caterpillar feeds on birch (_Betula alba_), beech (_Fagus
sylvatica_) and hazel (_Corylus avellana_) in the autumn, and hybernates
while still young. In the spring it feeds again, and is full grown in
June, when it changes to a chrysalis in a cocoon spun between leaves.
_The Common Emerald_ (_Hemithea strigata_)
One of the commonest of the Emeralds is _Strigata_, which may be found
in June and July in all parts of England, as well as in some localities
in Scotland and Ireland. Its wings are of a dull green colour, the front
pair being slightly scalloped on the hind margin, and crossed by
indistinct pale lines; and the hind pair are both scalloped and angled
and crossed in the middle by a transverse pale line. The fringe is
white, dotted with dull reddish brown.
[Illustration: FIG. 182.--THE COMMON EMERALD.]
The caterpillar is yellowish green, except the second, third, and fourth
segments which are brownish. It feeds on oak (_Quercus Robur_) and
whitethorn (_Crataegus oxyacantha_), and may be found in June.
Family--EPHYRIDAE
_The Maiden's Blush_ (_Zonosoma punctaria_)
The family _Ephyridae_ contains only six British species, chiefly
remarkable for the fact that their pupae generally resemble those of
butterflies.
We choose for our example the pretty little Maiden's Blush, so called on
account of the soft reddish patch on the middle of each fore wing. It is
represented in fig. 7 of Plate XII. It is moderately common, occurring
more or less in all parts of England, as well as certain localities in
the sister countries. It is a double-brooded moth, and may be caught in
May and August.
The caterpillar feeds on oak (_Quercus Robur_), from which it may be
obtained by beating both in June and September. It is either green or
tawny yellow, marked with yellow oblique lines on the sides.
Family--ACIDALIIDAE
The moths of this family, over thirty in number, are mostly of small
size, and have slender bodies. As a rule the wings are not in the least
angulated or scalloped, but in a few species the hind pair are slightly
angled on the hind margin; and both fore and hind wings are similarly
marked. The antennae are simple in the females, and generally only
slightly ciliated in the males.
The caterpillars are long and slender, without projections, and feed
principally on low plants. The pupae are to be found in loose cocoons
among the leaves of the food plants or under the soil.
We shall briefly notice three members of this rather extensive family.
_The Lace Border_ (_Acidalia ornata_)
The wings of this moth are silvery white, marked along the hind margin
with a beautiful lace-like border. This border consists of delicate
black and dark grey lines, and includes, in the fore wing, two light
brown blotches, one near the middle and the other in the anal angle. It
is abundant in England, particularly in chalky districts, but does not
seem to extend into Scotland. It may be seen on the wing from June to
August.
[Illustration: FIG. 183.--THE LACE BORDER.]
The caterpillar feeds on thyme (_Thymus Serpyllum_) and marjoram
(_Origanum vulgare_).
_The Riband Wave_ (_A. aversata_)
All the wings of this species are of a pale yellowish or ochreous grey.
The fore wings are crossed by three transverse dark lines, and the hind
wings by two. The space between the two outer lines of the fore wing and
that between the lines of the hind wing are usually filled in with a
greyish brown, thus forming the 'riband' from which the popular name of
the insect is derived; and when this is the case the lines which border
the riband are scarcely distinguishable. Just inside the second line of
the fore wings, near the costa, is a small but conspicuous brown spot.
[Illustration: FIG. 184.--THE RIBAND WAVE.]
The moth flies in June and July, and is common in all parts.
The caterpillar is dark brown except segments ten to thirteen, which are
grey. The line along the spiracles is whitish, and the surface of the
body is roughened by a number of minute warts. It feeds on various low
plants, including the meadow sweet (_Spiraea ulmaria_), water avens
(_Geum rivale_), common avens (_G. urbanum_), and knot-grass (_Polygonum
aviculare_), during April and May.
_The Blood-vein_ (_Timandra amataria_)
Our last example of the _Acidaliidae_ is the Blood-vein, which is common
in most parts of England in June and July.
[Illustration: FIG. 185.--THE BLOOD-VEIN.]
Its fore wings are pale grey, dusted with darker grey, and crossed by an
oblique red streak which runs from the tip of the fore wing to near the
inner margin of the hind wing. A slender dark and wavy line lies outside
this one, parallel with it in the hind wing, but meeting it near the tip
of the fore wing.
The caterpillar is grey, with three white longitudinal stripes. It feeds
in the autumn on dock (_Rumex_), sorrel (_R. acetosa_), and knot-grass
(_Polygonum aviculare_).
Family--CABERIDAE
Six species, all of rather small size, constitute the British portion of
the above family. Their wings are mostly white or pale grey, with light
markings, and without angles. The moths are to be caught with the net
at dusk, or they may be seen on fences and tree trunks during the day,
with their wings fully extended and applied closely to the surface on
which they rest.
The larvae, which have no humps, feed on trees, and change to the
chrysalis state in light silken cocoons.
_The Common Wave_ (_Cabera exanthemata_)
The first of our two examples of this small family is the Common Wave,
the wings of which are pale grey, almost white, dusted all over with
small dark dots. The fore wings are crossed by three parallel and
equidistant darker transverse lines, and the hind pair by two. The male
may be distinguished by its ciliated antennae.
[Illustration: FIG. 186.--THE COMMON WAVE.]
The caterpillar is yellow or greenish yellow, with hinder segments
slightly swollen. It feeds during the latter part of the summer on
sallows (_Salix caprea_ and _S. cinerea_) and alder (_Alnus glutinosa_),
and changes to a chrysalis in a light cocoon among fallen leaves. In
this state it spends the winter, the perfect insect emerging in May or
June.
This species is very abundant in most parts.
_The Clouded Silver_ (_Bapta temerata_)
The other example is the Clouded Silver, the wings of which are white,
and clouded along the hind margin with smoky grey. On the hind margin of
the fore wings, close to the fringe, is a row of black crescent-shaped
spots; and on the inner side of the cloudings is a waved transverse
band. In the centre of the same wings there is a very distinct dark
spot.
[Illustration: FIG. 187.--THE CLOUDED SILVER.]
This moth is not so common as the last, but is widely distributed. It
flies in May and June.
The caterpillar is bright green on the upper side, and has a row of
orange spots, bordered with brown, down the middle of the back. It feeds
in the autumn on the blackthorn (_Prunus spinosa_) and the wild cherry
(_P. Avium_), and spends the winter in the chrysalis state, inclosed in
a light silken cocoon.
Family--MACARIIDAE
_The_ V _Moth_ (_Halia Vauaria_)
The family _Macariidae_ contains only five British species, four of which
have the tip of the fore wings extended more or less into an angle, and
the hind wings are also angled to a greater or less extent.
[Illustration: FIG. 188.--THE V MOTH.]
Our only example is the V Moth, so called from the conspicuous V-shaped
blackish mark on the middle of the costa of the fore wings. The ground
colour of all the wings is grey, with a delicate violet tinge. There are
other dark markings in addition to the one mentioned above, and the
arrangement of these may be seen in the woodcut.
This species is very common in all parts, and flies at about midsummer.
The caterpillar is very variable in colour, but is generally green, and
is marked with longitudinal wavy lines. On each side is a series of
yellow blotches, forming a broken lateral stripe, and the body is
covered with minute black bristle-bearing warts. It feeds in May on
gooseberry and currant bushes, and changes to a chrysalis in a web
between the leaves.