The Order Hymenoptera comprises those insects which have four naked
membranous wings, lying in repose horizontally upon the body, and
intersected by a network of nerves. The name is derived from two Greek
words--[Greek: hymên], a membrane, and [Greek: pteron], a wing. The
mouth is composed of two horny mandibles, jaws, and lips adapted for
suction.
It is amongst the Hymenoptera that we meet with the most industrious
insects, some of which seem to possess real intelligence. These little
animals offer the most admirable examples of sociability. Born
architects, they construct dwellings marvellously contrived, which
serve them, at the same time, as nurseries in which to rear their
progeny, and storehouses in which to lay by their provisions. Nothing
can equal the solicitude with which they watch over their young larvæ,
still incapable of motion. They form republics, governed by immutable
laws, and make war against their enemies in order of battle. They have
predilections or antipathies for those who court their society, on
account of the material advantages they derive from them.
The Bees, the Humble Bees, the Wasps, and the Ants, are the best-known
types of this order of insects. Among a great number of the
Hymenoptera the females are armed with a sting, or lancet, a wound
from which causes great pain. All these insects undergo complete
metamorphoses. In the larva state the aculeate species are incapable
of motion and of obtaining food; but Nature has provided in different
ways for their preservation. They are often lodged and fed by the
workers of the tribe, unfruitful females, which, with a self-denial
very rare in Nature, seem to have no other vocation than to sacrifice
themselves to the welfare of the larvæ. The workers construct the nest
and bring in the provisions. This is the case with honey bees, wasps,
and ants.
Some deposit their eggs in the bodies of other insects, which die
immediately the larvæ which live in them have attained their full
development. The larvæ of the _Chalcididæ_ and of the _Ichneumonidæ_
furnish examples of Hymenoptera which inhabit the interior of the body
of another insect. Other parasitical species carry on their
depredations in a different way. They content themselves with laying
their eggs in the nests of other species of the order, which have the
advantage over them in being able to construct for themselves places
of refuge. Their larvæ live thus on their neighbours' goods,
nourishing themselves on the provisions which were laid up for others.
In this way live the _Cleptes_, the _Chrysides_, &c. Lastly, others,
such as the Gall-insects, and the _Tenthredinetæ_, or Saw-flies, live
in their first state exposed on plants, and feed upon their leaves.
We shall only here describe the principal families of the Order
Hymenoptera, which contains a considerable number of species. These
families will be--1st. The _Apiariæ_, containing the Honey Bees, the
_Melipodes_, and the Humble Bees. 2nd. The _Vespiariæ_, or Wasps. 3rd.
The _Formicariæ_, or Ants. 4th. The _Gallicolæ_, or Gall-insects.
BEES.--Man, from the very earliest age, before any civilisation
existed, knew the value of bees, and took advantage of the products of
these industrious insects. The Bible makes mention of honey bees.
Their Hebrew name is _Deborah_. The Greeks called them by the name of
_Melissa_, or _Melitta_.
Their wonderful architectural powers, their economical forethought,
the wonderful combination of their reasonings, which denote a real
intelligence, their admirable social organisation, have in all times
fixed the attention of naturalists, as they have also that of poets
and thinkers. Virgil has celebrated them. In the fourth book of his
Georgics, the Latin poet has summed up all that the ancients knew
about bees. He paints with a good deal of truth many traits in their
history, points out their enemies, and sets forth with accuracy all
the care that should be taken of them. In the words of the Mantuan
poet, they are heavenly gifts, _dona cælestia_, and their intelligence
excited his admiration:--
"His quibus signis atque hæc exempla secuti,
Esse apibus partem divinæ mentis, et haustus
Æthereos dixere." ...
Let us hasten to say, however, that all which the ancients,
naturalists or poets, Greek or Latin, relate on the subject of bees,
is a mixture of truth and error, and rests generally on mere
supposition. Aristotle knew well the three sorts of individuals which
are comprised under the title of bees, and some other principal facts
relating to their history; but these facts are not stated accurately
and precisely in his account of them, and they are, above all,
misinterpreted. The Greek philosopher understood insects in general
very badly. He made them spring from the leaves of trees, and brought
forward a multitude of errors about them, which the most simple
observation would have sufficed to dissipate. Pliny tells us that
Aristomachus of Soles consecrated fifty-eight years to the observation
of the habits of the bee, and that Philiscus of Thrace passed, for the
same motive, all his life in the forests. But this devotion to one
object does not appear to have produced much result, if one compares
the discoveries of our own age with the errors which Pliny, Aristotle,
and Columella have chronicled respecting them. Pliny says that bees
occupy the first rank among insects, and that they were created for
man, for whom their work procures honey and wax. He adds that they
form political associations, that they have councils, chiefs, and even
a code of morality and principles.
One sees by this opinion of the Roman naturalist in what high esteem
the ancients held bees. But they had the most singular ideas on the
reproduction of these little beings; and as no one had ever seen their
generation, they invented fable after fable to explain their origin.
Some pretended that bees sprang from an ox recently killed, and buried
in manure. Others added that they only sprang into existence from the
chest of a young ox killed with violence. The most courageous bees
came from the belly of a lion in a state of putrefaction. It was from
the head of this same animal, in a state of corruption, that the
_kings_ (_i.e._, the _queens_) were formed. The carcases of cows
furnished the mild and tractable bees; a calf could only furnish small
and weak ones. Other naturalists, or rather other dreamers, made these
insects spring from the calices of sweet-scented flowers. Combined and
separated in a certain manner, the flowers engendered bees. They said,
further, that the bees sought on the blossoms of the olive trees and
of the reed a seed which they rendered fit for the formation of their
larvæ.
All these fables, which sprang from the imagination of the ancients,
were developed by a writer of the Renaissance, a certain Alexander de
Montfort, author of a work entitled "Printemps de l'Abeille." If we
were to believe him, the king of the bees is formed of the juice which
the workers extract from plants. These latter are created from honey;
and the tyrants, _i.e._, the females, which do not manage to become
sovereigns of a hive, are formed only of gum. It will be seen that he
had profited only too well by what he had read in Greek and Roman
authors.
The bee was very much thought of in ancient Egypt, and is often
represented on their monuments, above the sculptured ornaments which
contain proper names, with two semicircles and a sort of sheaf, or
fasciculus. Champollion Figeac thinks that this group, taken together,
represents a title added to a proper name. According to Hor-Apollon,
another commentator on Egyptian hieroglyphics, the bee in the country
of the Pharaohs was the emblem of a people sweetly submissive to the
orders of its king. Nothing can be better than this comparison. It was
for this reason, no doubt, that Napoleon I. sprinkled the symbolical
bees over the imperial mantle which bears the arms of his dynasty.
All the fables, all the hypotheses, spread about and cherished by the
ancients respecting these industrious little insects, were dissipated
in a moment when, by the invention of glass bee-hives, first made in
the beginning of the last century by Maraldi, a mathematician of Nice,
we were enabled to observe their operations and habits. It is from
this period only that our exact knowledge of the really wonderful life
of these insects dates. Before Maraldi, the Dutch naturalist,
Swammerdam, had written an excellent "History of Bees." He died before
he had published his work, and when, a long while after his death, it
was at length printed, other investigators had already pushed on their
observations further than he had. Thanks to the invention of Maraldi,
Réaumur, John Hunter, Schirach, and Francis Huber, had unveiled, by
their admirable researches, the wonderful habits of these insects. The
discoveries of Francis Huber seem to be almost miraculous, when we
remember that this observer was blind from the age of seventeen.
Deprived of sight, Francis Huber did not the less wish to consecrate
his life to the observation and the study of Nature. He caused the
best works of his day on natural history and physics to be read to
him, his usual reader being his servant, named Francis Burnens, a
native of the Pays de Vaud. The honest Burnens took a singular
interest in all he read, and showed by his judicious reflections the
true talent of an observer, and Huber resolved to cultivate his
talent. Very soon he could place implicit reliance in his companion,
and see with another's eyes as if they were his own.
The two naturalists (we do not hesitate to give this title to the poor
peasant of the canton of Vaud who so well seconded his master in his
long hours of study) conceived a host of original experiments, which
led them to discover truths which no one up to that time had dreamt
of. The results of their researches were published, in 1789, in a
volume which produced a profound sensation among naturalists.[81]
Burnens was at a later period called back to the bosom of his family,
and invested by his fellow-citizens with important functions. Francis
Huber then continued his observations through the eyes of the
excellent wife he had married. A second volume was thus composed by
him twenty years after the appearance of the first. This volume was
published by his son, Pierre Huber, to whom we are indebted for the
admirable researches concerning ants, of which we shall have to speak
further on.
[81] "Nouvelles Observations sur les Abeilles," par François
Huber. Paris et Genève, in 8vo. 2e edition. 1814.
We will now speak of the habits of the bees. The labours of Réaumur,
of Schirach, and of Huber, have perfectly revealed them to us, and
have initiated us completely into the habits of these precious
insects, which are for us to a certain extent domestic animals. We
will begin by describing the Common Bee (_Apis mellifica_).
During the greater part of the year the population of our hives is
composed exclusively of two sorts of individuals--the female, or
mother bee, called also the queen bee; and the working bees, or
neuters, which are, properly speaking, females incompletely developed.
A third kind of individuals, the males, called also drones, are
generally not met with except from May to July.
[Illustration: Fig. 309.--Working Bee (_Apis mellifica_).]
The working bees are the people, the crowd, the _servum pecus_, the
living force, the bee community. They are recognised by their small
size, reddish brown colour, and, above all, by the palettes and
brushes with which the hind legs are furnished.
The three pairs of legs which are inserted in its thorax are its
tools. The two hind-legs are longer than the other pairs, and present
on the exterior a triangular depression, resembling a _palette_, which
is surrounded by stiff hairs, forming, as it were, the borders of a
sort of basket, in which the insect deposits the pollen of flowers.
The broadest part of the leg articulates with the tarsus, which is of
a square form, smooth on the exterior, and having hairs on its
interior surface, which has caused it to be named the brush. The joint
is used for gathering the pollen; it folds back on the leg (Fig. 310),
and forms with it a sort of small pair of pincers; and, finally, the
leg is terminated by four smaller articulations, the last of which is
armed with hooks. The other tools of the working bee consist of a pair
of movable mandibles, which close the mouth on its two sides, and of a
trunk or proboscis (Fig. 311), which may be considered as a sort of
tongue.
[Illustration: Fig. 310.--Leg of a Bee (magnified).]
[Illustration: Fig. 311.--Trunk of a Bee (magnified).]
With its mandibles the working bee seizes any hard substance. The
trunk serves it to collect the juice lying on the surface of the
petals, or at the bottom of the corolla of the flower. When a bee has
settled on a full-blown flower, it is seen immediately to make for the
interior of the corolla, to put out its trunk, and apply it to the
petals; it lengthens, shortens, and twists and bends it in all
directions. When the hairy surface of this organ is covered with
vegetable juice, the bee returns it to its mouth, and deposits the
booty in a conduit, whence the juice passes into the first stomach.
This trunk is then, in all respects, a tongue, with which the bee
sucks, licks, and pumps up the honey of flowers. But it also gathers
the pollen. When it enters a flower the bee covers itself with pollen
from head to foot, and then passing its brushes carefully over its
whole body, removes the dust which adheres to it in every part, and
piles it up on the triangular palettes of its hind-legs, in such a
manner as to form balls of greater or less size. If the flower is not
quite full blown, the bee makes use of its mandibles to open the
anthers, in which case the front pair of legs transmit the booty to
the second pair, which stores them in the baskets of the third. When
it has gathered as much as it can carry, the bee returns to the hive,
its legs laden with pollen.
[Illustration: Fig. 312.--Male, or Drone (_Apis mellifica_).]
[Illustration: Fig. 313.--Female, or Queen (_Apis mellifica_).]
This complete set of tools which we have just described is only to be
met with among the working bees. The males, or drones (Fig. 312),
larger and more hairy than the working bees, emitting a sonorous and
buzzing sound, have no palettes on their legs, the hairs on their
tarsi are not appropriated to the work of gathering, their mandibles
are shorter, and they have no _aculeus_, or sting, which is the
working bee's weapon.
The female, or queen (Fig. 313), is smaller than the male, and has a
longer body than the working bees, and the wings, shorter in
proportion, cover only the half of its body, whereas with the other
bees they cover it entirely. The only part she has to play is that of
laying eggs, and so she has no palettes and brushes. The sovereign is,
as suits her supreme rank, exempted from all work. She is always
escorted by a certain number of working bees, who brush her, lick her,
present honey to her with their trunks, save her every kind of
fatigue, and compose a train worthy of her feminine majesty. One very
remarkable fact is that only one queen lives in each hive. Perfect
sovereign of this tiny state, she rules over a people of some
thousands of workers. It is not rare to find 20,000 working bees in a
hive, and all submissively obey their sovereign. The number of males
is scarcely one-tenth part of that of the working bees; and they only
live about three months. The workers represent the active life of the
community.
"The exterior of a hive," says M. Victor Rendre, "gives the best idea
of this people, essentially laborious. From sunrise to sunset, all is
movement, diligence, bustle; it is an incessant series of goings and
comings, of various operations which begin, continue, and end, to be
recommenced. Hundreds of bees arrive from the fields, laden with
materials and provisions; others cross them and go in their turn into
the country. Here, cautious sentinels scrutinise every fresh arrival;
there, purveyors, in a hurry to be back at work again, stop at the
entrance to the hive, where other bees unload them of their burdens;
elsewhere it is a working bee which engages in a hand-to-hand
encounter with a rash stranger; farther on the surveyors of the hive
clear it of everything which might interfere with the traffic or be
prejudicial to health; at another point the workers are occupied in
drawing out the dead body of one of their companions; all the outlets
are besieged by a crowd of bees coming in and going out, the doors
hardly suffice for this hurrying, busy multitude. All appears disorder
and confusion at the approaches to the hive, but this tumult is only
so in appearance; an admirable order presides over this emulation in
their work, which is the distinctive feature in bees."[82] A very
simple calculation may serve to give us an idea of this prodigious
activity. The opening of a well-stocked hive gives passage to one
hundred bees a minute, which makes, from five o'clock in the morning
till seven o'clock in the evening, eighty thousand re-entrances, or
four excursions for each bee, supposing there is a population of
twenty thousand workers.
[82] "L'Intelligence des Bêtes." In 18mo. Paris, 1864.
Let us now follow their occupations from the moment in which they
establish themselves in a hive. The workers begin by stopping up all
the openings except one door, which is always to remain open. A
certain number set out to look for a resinous and sweet-scented
substance, known under the name of _propolis_, which is destined to
cover the inner surface of the hive, as its name shows, which is
derived from a Greek word signifying outskirts, or suburb. Huber
asserts that it is gathered from the buds of plants. This substance
has not yet been employed in the arts, although it possesses the same
qualities as wax, as M. de Frarière remarks in his work "On Bees and
Bee-keeping."[83] The propolis is employed in Italy for making
blisters. This gum is viscous and very adherent. The bee works it up
into balls, and carries it in this form to the hive, where other
labourers take possession of it. They seize the pellet with their
mandibles, and apply it to cracks which they have to make air-tight.
They use the propolis for another purpose still, which deserves to be
mentioned.
[83] "Sur les Abeilles et l'Apiculture." In 18mo. 2e edition.
Paris.
It happens sometimes that an enemy penetrates into their hive, and
that the bees are not strong enough to cast this intruder out of their
dwelling. What do they do? As soon as they have discovered the
invasion of their domicile, they set upon the impudent intruder, and
sting him to death. But how can they drag out the dead body, which is
often very heavy? such, for instance, as a slug. On the other hand, it
would be dangerous to abandon its carcase in the midst of the hive. A
Roman Emperor said that the dead bodies of our enemies always smelt
good. This is not the opinion of the bees. They know that if they
abandon the carcase in the hive it would infect the place, to the
great danger of their health. They therefore embalm it. They encase it
in propolis, which preserves it from putrefaction. It is said that the
art of embalming was practised for the first time by the ancient
Egyptians. It is an error: the first inventors of this art were bees.
If, instead of a slug, it is a snail whose evil genius has conducted
it into the interior of a beehive, the proceeding is more simple. The
moment he has received one sting, the snail retires under the
protecting roof of his movable house. The bees thereupon at once wall
him in by closing the opening to his shell with this material. The
shell is then cemented to the floor of the hive, and the house of the
poor mollusc, become its tomb, remains thus in the midst of the hive,
as a sort of decorative tumulus. When the sides of the hive are well
closed, the bees lay the foundations of their cells.
It was not formerly so easy to observe the details of the work done by
the bees as it is at the present day; for these insects, once in their
hives, have a great aversion to the light. If they are put into a
glazed hive, their first care is to shut up all the windows, either by
plastering them over with propolis, or by forming, by means of the
well-marshalled battalion of working bees, a sort of living curtain.
In order to be able to take them unawares, and study them at his own
convenience, Huber constructed a hive with leaves, which opened like a
book. Fig. 314, which represents the hive with leaves, which is
sometimes used, gives an idea of the plan adopted by Huber in order to
enable him at will to open the hive and surprise its inmates. Huber
had also recourse in certain cases to a glass cage placed in the
interior of the hive, and which he could easily move to the light.
Thanks to his ingenuity, Huber was able to follow the working bees in
all the various phases of their labours. When they begin to construct
their hives they divide the work among themselves. A first detachment
is employed to gather the wax, which is the building stone of our
little architects. It was thought for a long time that wax was solely
the pollen of flowers, elaborated in the stomach of bees, and then
disgorged by the mouth. It was reserved for a peasant of Lusac to be
the first to discover the true nature of this secretion. This
observer, who did not belong to any school, or at most belonged to
Nature's school, found the flakes of wax sticking between the lower
arches of the rings of the abdomen or belly of the working bee. The
wax, then, is produced by the insect by exudation, and is not simply
the pollen gathered from flowers. Huber himself states that bees
exclusively nourished on pollen do not secrete wax, and that, on the
contrary, they do furnish it when they eat saccharine matter. It is
easy to perceive the little plates of wax by slightly raising the last
rings of the bee's abdomen. Fig. 315 represents a bee very heavily
laden with this matter.
[Illustration: Fig. 314.--Bee-hive in Leaves.]
[Illustration: Fig. 315.--Bee seen through a magnifying glass at the
moment when the plates of wax appear between the segments of the
abdomen.]
[Illustration: Fig. 316.--Clusters of Bees.]
The working bees suspend themselves from the roof of the hive in such
a manner as to form festoons. The first clings to the roof with his
front legs, the second hooks himself on to the hind legs of the first,
and so on, as is shown in Fig. 316. They in this manner form chains,
fixed by the two ends to the roof, which serve as a bridge or ladder
to the bees which join this assembly.
The result of all this is at last a cluster or swarm of bees which
hangs down to the bottom of the hive. In this attitude they remain at
first motionless, waiting till the honey in their stomachs is changed
into wax. When the wax is sufficiently elaborated in its organs, one
of them detaches itself from the group of which it forms a part. It
takes between its legs one of the flakes of wax adhering to the rings
of its abdomen, kneads it with its mandibles, moistens it with its
saliva, and gives it the appearance of a soft filament, which it
sticks on to a projecting point of the roof. To this first layer it
adds others, till it has exhausted all its wax. Then it leaves its
post, and returns to the fields; another worker--another mason, as
they are sometimes called--succeeds it, and continues the laying of
the foundations. Presently shapeless blocks of wax hang down from the
roof. It is in these blocks that other workers, with their mandibles,
hollow out and form the first cells. While the workers continue to
prolong the foundation-wall, and whilst the first cells are being
shaped, new ones are roughly sketched out or rough-hewn, and the work
advances with a marvellous rapidity.
Each cell forms a small hexagonal cup, closed on one side only by a
pyramidal base, produced by the meeting together of three rhombs. The
honeycombs are the result of two layers of cells placed back to back,
arranged in such a way that the bases of the one become the bases of
the other, the base of each little cell being formed by the union of
the bases of three opposite cells. The bees begin by forming the base
of the cell; they then add the six sides, or walls, which are to
complete the hexagonal cup. At the same time others set to work on the
opposite side of the comb, and construct little cells back to back
with the cells of the front surface. They do not finish them off at
once. The walls are at first very thick: new workers, who succeed
those who merely mark out the work, being occupied in planing down the
rough-hewn cells, and in reducing the walls to the desired thickness.
This work is accomplished with an incredible celerity, for the bees
can build as many as 4,000 cells in twenty-four hours. There is very
good reason for the hexagonal form being adopted by the bees in
constructing their cells, as it involves a question of economy, which
these insects have solved in their most admirable manner.
"When one has well examined," says Réaumur,[84] "the true shape of
each cell, when one has studied their arrangement, geometry seems to
have guided the design for the whole work, and to have presided over
its execution. One finds that all the advantages which could have been
desired are here combined. The bees seem to have had to solve a
problem containing conditions which would have made the solution
appear to be difficult to many geometricians. This problem may be thus
enunciated:--Given a quantity of matter, say of wax, it is required to
form cells which shall be equal and similar to each other, of a
determined capacity, but as large as possible in proportion to the
quantity of matter which is employed, and the cells to be so placed
that they may occupy the least possible space in the hive. To satisfy
this last condition, the cells should touch each other in such a
manner that there may remain no angular space between them, no gap to
fill up. The bees have satisfied these conditions, and at the same
time they have satisfied the first conditions of the problem in making
cells which are tubes having six equal sides, or in other words,
hexagonal tubes.... We see still further that the best thing the bees
could do to economise their space and materials, was to compose their
honeycombs of two rows of cells turned in opposite directions."
[84] "Mémoires pour servir à l'Histoire des Insectes," tome
v., p. 379.
[Illustration: Fig. 317.--Cells constructed by Bees.]
This arrangement, it will be seen, enables them to economise the half
of the wax intended for making the bases of the cells. They economise
it still more by making the bases and the sides of the tubes extremely
thin; the borders only of the comb being fortified by an excess of
wax. These two-sided combs descend from the roof of the hive in
parallel series, their thickness being about half an inch. They are
fixed to the top by a sort of wax foot, and fastened to the sides by
numerous bands. The bees pass between the rows, besides excavating
circular openings, which serve as doors of communication. The form and
the general arrangement of these buildings are otherwise very varied,
according to circumstances. The bees always accommodate themselves to
the nature of the hive.
In all these operations they exhibit great judgment. It is impossible,
when one has once seen them at work, to look on them as mere organised
machines, whose instinct is their spring of action; we are forced to
concede to them intelligence.
[Illustration: Fig. 318.--The cells of a Bee-hive. A, large cell
intended for the larvæ of the _queens_. B, middling-sized cells
intended for the larvæ of the _males_. C, small cells intended for the
larvæ of the _workers_.]
The cells are of three dimensions: the small ones intended for the
larvæ of the workers, the middling-sized ones for the larvæ of the
males, and the large ones for the larvæ of the queens.
These last--that is, the _royal cells_--are generally only about
twenty in number, in a hive containing 20,000 bees. Constructed of a
mixture of wax and of propolis, resembling a rounded thimble, they
form tubes of half an inch long, turned towards the exterior, and
placed always vertically, in such a manner as to appear detached from
the comb.
The weight of a _royal cell_ is equivalent to that of a hundred other
cells. The bees spare nothing to make it comfortable and spacious. "It
is quite a Louvre," says Réaumur.
But independently of their use as cradles, these cells serve as
storehouses for honey.
A few of these are used in turn for both these purposes, but a great
number are reserved exclusively for stores of honey and pollen. This
is brought, as we have already said, in the form of pellets, in the
baskets which the hind legs form. The working bee, when it has
gathered it, pushes it into the cell, pressing it with its hind-legs.
Another then arrives, and kneads up the mass to make it adhesive. The
bee brings the honey in its first stomach, and disgorges it into one
of the cells where it is to be kept. However, it is not always by
carrying its honey into a cell that the worker is relieved of it,
often finding an opportunity to deliver it on the way.
[Illustration: Fig. 319.--Interior of a Hive.]
"When it meets," says Réaumur,[85] "any of its companions who want
food, and who have not had time to go and get any, it stops, erects
and stretches out its trunk, so that the opening by which the honey
may be taken out is a little way beyond the mandibles. It pushes the
honey towards this opening. The other bees, who know well enough that
it is from there they must take it, introduce the end of their trunks
and suck it up. The bee which has not been stopped on its road, often
goes to the places where other bees are working, that is, to those
places where other bees are occupied, either in constructing new
cells, or in polishing or bordering the cells already built; it offers
them honey, as if to prevent them from being under the necessity of
leaving their work to go and get it themselves."
[85] "Mémoires pour servir à l'Histoire des Insectes," tome
v., p. 449.
The honey which fills the store cells is intended for daily
consumption, and also intended as a reserve for the period when the
flowers furnish no more. The empty cells are left open, the workers
making use of them when they want them, particularly during rainy
days, which keep them at home. But the cells which contain the honey
put by in reserve are closed. "They are," says Réaumur, "like so many
pots of jam or jelly, each one of which has its covering, and a very
solid covering it is too." This covering, composed of wax,
hermetically seals the pots containing this reserve of honey. The
object of this is to keep the honey in a certain state of liquidity,
by preventing the evaporation of the water it contains. It is a
remarkable fact that it does not run out of the cells which are open,
although their position is almost always horizontal. This is because
there are always in the sides of these narrow tubes points enough to
keep it in, and that besides this the last layer of honey is always of
greater consistency than the liquid in the interior, and upon which it
forms a sort of crust.
When the harvest has been abundant, many combs of closed cells may be
found in each hive, perfect storehouses of abundance, furnished for
the wants of the bad season. When the construction of the cells goes
on well--often on the day after the bees have installed themselves in
their hive--the queen goes out to meet the males. At the hour when
these are accustomed to disport themselves in the sun, that is to say,
from noon till five o'clock, she leaves the hive, whirls about for a
few seconds, and disappears into the air. At the end of half an hour
she returns, pregnant.
When the female returns to the hive, she is _the_ object of every
attention, the workers pressing round her, and forming quite a train.
Many approach her, and lick the surface of her body; others brush her,
caress her, and present her their trunks full of honey. Forty-eight
hours after her return to the hive the mother bee generally begins
laying.[86] Running over the honeycomb, she deposits an egg in each
empty cell, and fixes it to the bottom by means of a glutinous
secretion, in such a way that the egg is suspended in the interior of
the cell. They have the appearance of little oblong bodies, of a
bluish white. If the queen, in a hurry to lay, lets more than one egg
fall into the same cell, the workers who accompany her hasten to
carry out and destroy those that are in excess. This is often the case
when the combs have not enough cells to contain all the eggs laid. We
have said that the queen only lays worker eggs at this time; the
others are laid later. She continues to lay until the cold weather
approaches, when she ceases to do so, and does not resume her
occupation until the return of spring. This laying is very abundant.
The queen produces at least two hundred eggs a day; so that in the
space of two months she lays more than twelve thousand. Towards the
eleventh month of her existence in the perfect state, the queen begins
laying the eggs which will produce males, their number varying from
1,500 to 3,000; the deposition of these eggs occupies about a month.
[86] Not invariably, the period is often longer.--ED.
Towards the twentieth day, the workers lay the foundations of some
royal cells. When these cells have attained a certain length, the
queen deposits an egg in each, allowing, however, one or two days to
intervene between the laying of these privileged eggs, so that the
young queens to whom they are to give birth should not be hatched all
at the same time, which would cause difficulties and even wars
concerning the right of their succession to the throne. This
complication human governments have not been always able to avoid, as
history shows; but the bees have found out a way of doing so.
The distribution of the eggs in the cells is not left to chance. Each
egg, according to the sex to which it belongs, is deposited in the
cell which awaits it. The eggs of the females do not, however, differ
in any way from those of the workers. The difference in their
development depends entirely on the space and food allowed them.
We represent (Fig. 320) a portion of a comb containing the eggs placed
in the cells, as also the royal cells. The regular order of laying is
such as we have just described, but the result is quite different when
the impregnation of the queen has been retarded by an accidental
captivity of two or three weeks. The longer this delay, the greater
will be the number of male eggs. If the queen is shut up for more than
twenty days after her birth, she can then lay nothing but male eggs
during the remainder of her existence. It seems, also, that this delay
troubles her intellect; for she then often makes blunders as to the
cells. She lays the eggs of the males, or drones, in the cradles
prepared for the queens, and thus brings confusion into the future
community.
The eggs, once laid, are left to the care of the working bees, which
Réaumur called the nurses, in opposition to the wax-workers, which are
employed in works of construction. According to many bee-keepers, and
especially M. Hamet,[87] this division of duties is not positive. The
young workers are the wax-workers; the old ones, collectors of honey,
and nurses. However, when the honey-harvest is at its height, all the
workers collect the spoil. Every individual is pressed into the
service at the harvest time, as with men.
[87] "Cours d'Apiculture." In 8vo. Paris, 1864.
[Illustration: Fig. 320.--Portion of the comb, with the eggs occupying
the cells. One of the royal cells has been opened by the queen.]
The eggs are not long in being hatched. From the moment when the larva
comes out of the egg till that of its metamorphosis into a pupa, it
keeps in its cell, rolled up, motionless as an Indian idol in its
sacred temple. The working bees visit it from time to time, to see
that it wants for nothing, and to renew its provisions. They also
carefully inspect the different cells, and assure themselves of the
good condition of their nurslings. The pap which they give them as
food is whitish, and resembles paste made of flour. It is apparently a
preparation of pollen, prepared in the body of the insect. As the
larvæ increase in size, their food is made to acquire a more decided
taste of honey, and to become even slightly acid. It seems, then,
that the bees know how to graduate the food of their larvæ in such a
manner as to bring it nearer by degrees to honey.
In the space of five days the larvæ are developed; they have absorbed
all their pap, and have no need from that time of any nourishment, for
they are about now to change into pupæ. Now the nurses pay them a last
attention. They wall them up in their cells, closing the openings with
a waxen covering. The larvæ then get close to the wax covering. In
thirty-six hours they have spun for themselves a silky cocoon, in
which they undergo their transformation into pupæ. The moult, which
precedes their metamorphosis, constitutes a crisis, as with the
caterpillars of Lepidoptera.
[Illustration: Fig. 321.--Larva of the Bee (magnified).]
The perfect insect is hatched seven or eight days after its
transformation into a pupa, the organs being developed little by
little, and the young bee is then ready to appear in the broad
daylight. It breaks through the thin transparent covering in which it
is still swathed; then, with its mandibles, it pierces the operculum,
or door of its prison, and opens a way for itself by which it can
issue forth. With the assistance of its front legs it clings to the
rim of the cell, and draws itself forward, till it has set free the
whole of its body. The other bees lavish upon this newly-arrived
little stranger all possible attention, to make its entrance into the
world easy and agreeable; assisting and supporting it till it has
become quite strong. It very soon becomes strong. If it is a working
bee, it is not long in getting to work and in mixing with its
companions in labour.
This is the way in which the hatching of ordinary bees takes place,
workers and males; the first, twenty days after they are laid; the
second, twenty-four days after. The rearing and birth of the young
queens is slightly different. In proportion as the larvæ increase in
size do the workers enlarge the cells which contain them; and then
again gradually diminish their size as the moment of their last
metamorphosis approaches. A special and peculiar food is given to the
larvæ of the queens; it is quite different from that which is given to
the larvæ of the working bees, being a heavier and sweeter substance.
This special food seems to exercise such an energetic influence on the
development of the ovaries, that simple workers which have
accidentally received any of it, during their larval state, become
pregnant and lay a few eggs. But this anomalous development remains
imperfect, because the prolific food was only administered in a small
quantity. Besides which, the size of the cells is of great importance
to the development of the larvæ imprisoned in them; and so the larvæ
of working bees, having lived in the small cells, can never attain the
proportions of the queen, nor acquire her fecundity. But all this is
changed if these larvæ are moved into the large cells and fed on this
royal pabulum; they then become veritable queens. If, with us, the
coat does not make the man nor the frock the monk, it is certain that
with the bees the cradle helps materially to make the queen.
When the queen through some accident or other has perished, the
plebeian population of the hive very quickly perceive the misfortune,
and without losing time in useless regrets, apply themselves to repair
their loss. They choose the larva of a working bee, less than three
days old, on which they bestow the treatment suited to change it into
a female. The workers enlarge the cell of this grub by demolishing the
surrounding cells, and administer to it a strong dose of royal food,
to effect its transformation. This marvellous metamorphosis is
accomplished like those which one reads of in fairy tales, where so
many poor beggars are changed, by a wave of the hand, into beautiful
princesses, covered with gold and precious stones. Only here the fairy
tale is a true story; the poet's dream is a real phenomenon. According
to Francis Huber, the larva intended to produce a female has to change
its position. The workers add then to its domicile a sort of vertical
tube, into which they push and turn round the young grub which is the
hope of the community. For twelve days a bee, a sort of body-guard,
has special charge of the person of our infant. It offers it food, and
pays it many other delicate little attentions. When the moment for the
metamorphosis has come, the orifice of the tube is closed, and the
bees await the hatching of the new queen. Thus the loss of the queen
is speedily replaced. The larvæ of the queens, when they are shut up
in their cells, have the head downwards, whilst the larvæ of the males
have the head upwards. Their hatching takes place thirteen days after
the laying of the eggs.
As soon as they have quitted their cradles, the young queens are ready
to take flight. The others, workers and males, are less strongly
organised. Before they are able to take a part in the sports and
labours of the old ones they require a rest of twenty-four hours,
during which the nurses lick them, brush them, and offer them honey.
But the young workers require to undergo no apprenticeship before they
do the work which devolves upon them. They go straight to their work,
and suppress all apprenticeship. Nature is their guide and counsellor.
When the hatching has begun, each day adds some hundreds of young
bees to the population of the hive, which is not long in becoming too
small for the number of its inhabitants. It is then that those curious
emigrations of this winged people take place which are called
_swarms_. The queen leaves the hive, with a part of her subjects, and
founds a new colony elsewhere. In the climate of France the bees
generally swarm in the months of May and June. In the south very
thickly populated hives may furnish as many as four swarms in a
season, but in the north rarely more than one or two. But in some
years swarming does not take place at all, for the want of a
sufficient population. In such cases the workers do not construct
royal cells at the period when the eggs of the males are laid, and the
swarming is put off till the following spring. It occasionally happens
that a hive, although full of bees, cannot make up its mind to send
out a swarm, and also that the hives thinly populated send out
abundant swarms. There are, then, other causes than the excess of
population which exercise an influence on this annual crisis in the
life of bees. The first swarm is always led by the old queen; if other
swarms succeed, it is the young females lately hatched who lead the
way.
There are many signs which announce that a swarm is going to take
place. The appearance of the males, or drones, is one of the first
signs. Another sign, but far from being infallible, is the excess of
the population in the common home. The bees seem then to find
themselves so ill at ease in their over-crowded hive, that part of
them go out and keep outside, either on the stand upon which the hive
is placed, or upon the hive itself. Crowds of bees may be seen heaped
up on each other outside, only waiting for the signal of departure.
But the least equivocal of all the signs, that which points out the
event for the very day, says Réaumur, is when the bees of a hive do
not go into the country in as great a number as usual, although the
weather may be favourable and seem to invite them to do so. "There is
no sign," says Réaumur, "which points out so surely that a swarm is
preparing to take flight, as when, in the morning, at those hours when
the sun shines, and when the weather is favourable for work, the bees
go out in a small number from a hive from which they went out in great
quantities on the preceding days, and bring back only a little rough
wax. The fact of their acting in this manner seems to force us to
concede to bees more intelligence and foresight than many people are
inclined to allow that they possess; at any rate, it is exceedingly
puzzling to those who wish to explain all their actions by saying that
they are purely mechanical. Does it not seem proved that from the
morning all the inhabitants of a hive have been informed of the
project which will be executed not before noon, or, perhaps, not for
some hours after it?... There is a well-known story of an old
grenadier, who, being comfortably asleep while his comrades were
pitching their tents, answered to his general, M. de Turenne, when
questioned on the subject, '_that he knew very well that the army
would not remain long in the camp they were pitching_.'
"All our bees, or nearly all, seemed to have foreseen the move that
their queen was about to make, as that old soldier had foreseen the
general's order to his army."[88]
[88] "Mémoires pour servir à l'Histoire des Insectes," tome
v., p. 611.
In a hive which is going to "cast," as it is called in technical
phraseology, there is often heard, in the evening, and even during the
night, a peculiar humming. All seems to be in agitation. Sometimes, to
hear the noise, it will be necessary to bring your ear close to the
hive; you then will hear nothing but clear and sharp sounds, which
seem to be produced by the flapping of the wings of one single bee.
"Those who know better than I do the language of bees," says Réaumur,
"have told marvels of these sounds. They pretend that it is the new
queen that makes this noise; that she is, perhaps, haranguing the
troops she wishes to go with her; or that, with a kind of trumpet, she
animates them to undertake the great adventure. Charles Butler, the
author of 'Female Monarchy,' attributes to this noise quite another
signification. He says that it seems as if the bee which aspires to
become queen supplicates the queen-mother, by lamentations and groans,
to grant it permission to lead a colony out from the hive; that the
queen does not yield sometimes to these touching prayers for two days;
that when she does acquiesce, she answers the suppliant in a fuller
and stronger voice; and that when you have heard the mother-bee grant
this permission, you may hope next day to have a swarm.... Butler has
determined all the modulations of the chant of the suppliant bee, the
different keys to which they are set, as also those of the chants of
the queen-mother. He pretends that it is not allowed to those who wish
to raise themselves to a superior rank to imitate the chants of the
sovereign; woe betide the young female if she should dare to do so! it
would only be in a spirit of revolt, and she would be immediately
punished by the loss of her head. The old-established queen does more
than that: at the same moment she condemns to death those bees which
had been seduced."[89] The true cause of this unusual noise is the
agitation of the wings of a great number of the bees in the middle of
the hive.
[89] _Ibid_, tome v., pp. 616, 617.
It has been remarked, that when about to swarm the bees seem as if
mad. They lose their senses; the queen setting them the example.
Francis Huber has made the most curious remarks on this subject. Here
is, according to this immortal observer, what goes on in the hive when
an emigration is about to take place:--The queen, being angry at the
noise which the young females ready to be hatched are making in their
cells, runs about the hive, examines the cells, and endeavours to
destroy those which contain the females; but she meets with a very
firm resistance from the workers, who take upon themselves to protect
them. She endeavours here and there to lay an egg, but generally
retires without having done so. She runs, stops short, sets off again,
walks over the bodies of the workers she meets; sometimes, when she
stops, the bees near her stop also, as if to look at her. They advance
briskly towards her, strike her with their heads, and mount on her
back. She then dashes off, carrying with her some of the workers. Not
one of them offers her honey; she takes it herself from the open
cells, which are for the use of the whole hive. They no longer draw up
in line on each side of her as she moves along, her guard of honour no
longer surrounds her; she seems fallen from her high rank.
However, the first bees which were disturbed by her now follow,
running like herself, and spread alarm in their turn among the rest of
the population. The road which the queen has traversed is to be
recognised by the excitement which she has caused on her passage, and
which cannot now be calmed. Very soon she has visited every corner of
the hive, so that the fever has become general. She now no longer lays
her eggs in the cells, but lets them fall anywhere at random. She
seems to have lost her wits.
The nurses in their turn are attacked with the contagion. They pay no
attention now to their charges. Those which return from the country
have no sooner entered the hive than they take part in these
tumultuous movements, and give themselves up to the general
excitement. Not even thinking of depositing the pellets of pollen
which they carry on their legs, they run about apparently without aim.
The delirium takes possession of the whole republic. The end of all
this is a general sortie. The whole hive, with the queen at its head,
precipitates itself towards the door, and issues forth to create a
swarm. Once in the fresh air, they become quiet; their madness
subsides, and they fix themselves to a branch of a tree, and having
been captured, set to work again as usual. Francis Huber often
remarked that, in a swarm which had started, if the queen, who
directed the flight, were seized and killed, immediately all the bees
would return to the hive. It would seem that, having lost their chief,
they acknowledged themselves incapable of forming a colony.
A swarm never comes out except on a fine day, or, to speak more
accurately, at an hour of the day when the sun is shining, when the
air is calm, and the sky clear. It is generally between ten o'clock in
the morning and three o'clock in the afternoon. "We observed," says
Francis Huber, "in a hive all the signs which are the fore-runners of
a cast for a swarm--disorder and agitation--but a cloud passed before
the sun, and quiet was restored to the hive; the bees thought no more
of swarming. An hour after, the sun having shown itself again, the
tumult recommenced, increased very rapidly, and the swarm set out on
its journey."[90]
[90] In general, bees very much dislike bad weather; when they
are foraging in the country, the appearance of a single cloud
before the sun causes them to return home precipitately.
However, if the sky is uniformly dark and cloudy, and if there
are not any sudden alternations of darkness and light, they are
not easily alarmed, and the first drops of a gentle rain hardly
drive them away from their hunting-ground.
At the moment which precedes their exit, the buzzing increases in the
hive. Some of the workers go out first, as if to ascertain the state
of the atmosphere. The moment the queen has passed the threshold, the
emigrants follow in a cloud behind her; in an instant the air is
darkened with bees, which crowd together and form a thick cloud. The
swarm rises, whirling round about in the air; it poises itself for a
few minutes over the hive, to allow time to reconnoitre, and for the
laggards to join, and then goes off at full speed.
The queen does not make choice of the place where the company shall
find shelter. When a branch of a tree has been selected by a certain
number, they fix themselves on it. Many others follow them. When a
great many have collected, the queen joins the throng, and brings in
her train the rest of the troop. The group already formed becomes
larger and larger every instant. Those which are still scattered about
in the air hasten to join the majority, and very soon all together
compose one solid mass or clump of bees clinging to each other by
their legs. This cluster (Fig. 322) is sometimes spherical, sometimes
pyramidal, and occasionally attains a weight of nine pounds, and may
contain as many as 40,000 bees. From this moment, although they are
uncovered, they remain still. In a quarter of an hour everything
becomes quiet, and the bees cease to hover about the cluster more than
round an ordinary hive. Now is the moment to take possession of the
swarm in a hive prepared beforehand to receive it. If delayed too
long, the troop flies off, and establishes itself in some natural
cavity, as the hollow of a tree, &c. The bees then return to their
wild state.
Under a warm climate, where flowers abound, the hives may cast several
times in succession. The first swarm, however, is always the best. It
is more numerous, and has before it more time to provision itself. If
the weather remains favourable, it is not rare to see it send out a
swarm itself three weeks after leaving the old hive. The old queen
then leads the emigration of the second swarm, abandoning the colony
she had lately founded. If the original hive sends forth several
swarms, the interval between the first and the second is from seven to
ten days; the third and the fourth follow at shorter intervals. But
these late casts have rarely vitality enough to exist long.
[Illustration: Fig. 322.--Cluster of Bees hanging to a branch.]
A swarm never returns to a hive it has once left. It is surprising
then that a hive can furnish a second swarm after the interval of a
few days, without being too much weakened. But the old queen, in
quitting her domain, leaves behind her a considerable quantity of
brood. These larvæ are not long in re-peopling the hive, so as to
furnish a second swarm. The third and the fourth casts weaken the
population more perceptibly; but there remain still enough workers to
continue operations. In some cases the agitation of the cast is so
great as to cause all the bees to quit the hive together, leaving it
deserted; but this desertion only lasts an instant, one part of the
swarm wisely returning to their home.
All those which start away become members of the new colony. When the
general delirium we have spoken of has taken possession of them, they
precipitate themselves together, they pile themselves up all at the
same time by the door of the hive, and get so hot as to perspire
freely. Those which are in the midst of the _mêlée_ bear the weight of
the whole crowd, and seem bathed in sweat. Their wings become damp,
and they are no longer able to fly, and even if they manage to escape,
they get no further than the stand, and are not long in re-entering
the hive, instead of following the main body of the emigrants. We must
not forget that a part of the population is always out at those hours
of the day when the swarms take place, engaged in collecting
provisions; and having collected the spoil, these workers return to
the hive abandoned by the greater part of their companions, and betake
themselves to their usual occupations, as if nothing had happened.
They form the nucleus of the new population, which is soon enlarged by
the hatching of the pupæ. We have already said that the first swarm is
always led by the old queen or mother, and that it starts before the
hatching of the young females. If she had not gone out before their
birth she would have destroyed them, and the new hive would have been
unable to re-organise itself for the want of a chief.
The first swarm having set out, those bees which remain in the hive
pay particular attention to the royal cells. If the young queens make
efforts to escape from them, their guardians watch them narrowly, and
as the prisoners destroy their covers of wax the guards restore them;
but as they do not desire the death of the inmates, they pass in some
honey through the opening before they close it, so as to ameliorate
their captivity. At the appointed moment, the issue of the first egg
laid quits her cradle. Very soon she yields to the murderous instinct
which impels her to destroy her rivals, so that she may reign with
individual sway over the community. She searches for the cells in
which these are shut up, but the moment she approaches them the
workers pinch her, pull her about, drive her away, and oblige her to
move on, and, as the royal cells are numerous, she finds with
difficulty any corner in her hive where she may be at rest.
Incessantly tormented by the desire of attacking the other females,
and incessantly driven back by the guard, she becomes very much
excited, passes through the different groups of workers at a run, and
communicates to them her agitation. She leads the inmates of the hive
the same sort of dance frequently in the course of the day.
Sometimes the young queen at the end of her attempts utters a shrill
song, analogous to that of the grasshopper. This song, so unusual
among these insects, has the effect of petrifying the bees. So says
Francis Huber, speaking of a queen which had just been hatched, and
which was trying in vain to satisfy her jealous instincts. "She sang,"
says he, "twice. When we saw her producing this sound, she was
motionless, her thorax rested against the honeycomb, her wings being
crossed on her back, and she moved them about without un-crossing
them, and without opening them. Whatever cause it was that made her
choose this attitude, the bees seemed affected by it, all of them now
lowered their heads and remained motionless. Next day the hive
presented the same appearances, there remained still twenty-three
royal cells, which were all assiduously guarded by a great number of
bees. The moment the queen approached these, all the guards were in a
state of agitation, surrounded her, bit her, hustled her in every way,
and generally finished by driving her off; sometimes when this
happened she sang, resuming the attitude which I just now described;
from that moment the bees became motionless."[91] But the fever which
had seized on the young queen ended by communicating itself to her
subjects, and, at a particular moment, a new swarm set out under her
guidance.
[91] "Observations sur les Abeilles," tome i., p. 265.
When the emigration is effected, the workers which had remained at
home set free another female. This one acts in the same way as the
first. She tries to get at her rivals still imprisoned, and whom she
can smell in their cradles; but the guards repel her with vigour,
and defeat all her attempts, till she makes up her mind to emigrate
with a new swarm. This curious scene is repeated, with the same
circumstances, three or four times in the space of a fortnight, if the
weather is favourable, and the hive well peopled. In the end, the
number of bees is so much reduced, that they can no longer keep such
vigilant guard round the royal cells, and it then happens that two
females come out together from their cradles. Immediately the two
rivals look for each other, and fight, and the queen that comes
victorious out of this duel to the death reigns peaceably over the
people she has won for herself. If, in the tumult which precedes the
swarming, a female escapes from her prison, it may happen that she is
carried away in the swarm. In this case the deserters divide into two
separate bands, but the weakest in numbers are not long in breaking
up, the deserters going to swell the principal swarm. At last all the
troop is reunited, and it then contains two queens. As long as the
swarm remains fixed on its branch, all passes quietly, in spite of the
presence of a second queen. But as soon as it has become domiciled,
the affair becomes serious; a duel to the death takes place between
the two aspirants to the command. Two queens cannot exist in the same
hive. One of them is _de trop_ and must be got rid of.
Francis Huber was the first to describe these duels between the
queens. We quote an interesting account which he has left us of a
combat which he watched on the 12th of May, 1790:--"Two young queens,"
says he, "came out on that day from the cells almost at the same
moment, in one of our smallest hives. As soon as they saw each other
they dashed one against the other with every appearance of the
greatest rage, and put themselves in such a position that each one had
its antennæ seized between the teeth of its rival; the head, the
thorax, and abdomen of the one were opposite to the head, the thorax,
and abdomen of the other; they had only to bend round the posterior
extremity of their bodies, and they would reciprocally have stabbed
each other with their darts, and both engaged in the combat would have
been killed. But it seems as if Nature would not allow this duel to
end by the death of both of the combatants. One would say that she had
ordained that those queens, finding themselves in this position (that
is to say, face to face and abdomen to abdomen), should retreat that
very instant with the greatest precipitation. And so, as soon as the
two rivals felt that their posterior parts were about to meet, they
left go of each other, and each one ran away in an opposite
direction.... A few minutes after they had separated from each other
their fear ceased, and they recommenced looking for each other. Very
soon they perceived the object of their search, and we saw them
running one against the other. They seized each other, as at the
first, and put themselves in exactly the same position. The result was
the same; as soon as their abdomens approached each other they only
thought of getting free, and ran away. The working bees were very much
agitated during the whole of this time, and their tumult seemed to
increase when the two adversaries separated from each other. We saw
them on two different occasions stop the queens in their flight, seize
them by the legs, and keep them prisoners for more than a minute. At
last, in a third attack, the queen which was the most infuriated or
the strongest, rushed upon her rival at a moment when she did not see
her coming; seized her with her jaws by the base of her wing, then
mounted on to her body, and brought the extremity of her abdomen over
the last rings of her enemy, whom she was then able to pierce with her
sting very easily. She then let go the wing which she held between her
teeth, and drew back her dart. The vanquished queen dragged herself
heavily along, lost her strength, and expired soon afterwards."[92]
[92] "Observations sur les Abeilles," tome i., pp. 174-178.
These singular combats take place between young maiden queens. Francis
Huber, by introducing into a hive some queens from other hives
convinced himself that the same animosity impels the females which are
pregnant to fight with and destroy each other. From the moment when
the young queen to whom the sovereignty has fallen is pregnant, she is
anxious to destroy all the royal pupæ which still exist in the hive,
and which are then given up to her without resistance by the workers.
[Greek: Ouk agathon polykoiraniê. heis koioanos hestô,
Eis basileus....][93]
[93] "Many ruling together is not good: let there be one
ruler, one king."--_Homer's "Iliad,"_ ii. 110.
Become a mother, the female attacks one after the other the cells
which still contain females. She may be seen to throw herself with
fury on the first cell she comes to. She makes an opening in it with
her mandibles large enough to allow her to introduce her abdomen, and
then turns herself about till she has succeeded in giving a stab with
her sting to the female which it contains. She then withdraws, highly
satisfied with what she has done. The working bees, who up to this
moment have remained indifferent spectators of her efforts, take upon
themselves the rest of the business. They set to work to enlarge the
hole made by the ruling queen, and to draw out the carcase of the
victim.
In the meanwhile, the fierce and jealous sovereign throws herself on
another cell, and breaks into it with violence. If she does not find
in it a perfect insect, but only a pupa, she does not condescend to
make use of her royal weapon. The workers take on themselves to empty
the cell and destroy its contents. These executions over, the queen
can for the future occupy herself in laying, without having anything
to fear from rivals. Let us remark, in passing, that man is not much
behind these insects whose savage exploits in cruelty we have just
related. Among certain tribes of Ethiopians the first care of the
newly-crowned chief is to put in prison all his brothers, so as to
prevent wars by pretenders to the throne. Delivered from all dread of
rivals, our queen sets to work with an indefatigable zeal; and the
workers, animated by the hope of a numerous progeny, heap up
provisions around them.
But now a new tragedy is about to be enacted. The drones, that is to
say, the males, are now no longer wanted in the colony: their mission
is over. By an inexorable law of Nature they must be got rid of, and
the working bees proceed to make general massacre of them. It is in
the months of July and August that this frightful carnage takes place.
The workers may be seen furiously giving chase to the males, and
pursuing them to the extremity of the hive, where these unfortunate
insects seek a place of safety. Three or four workers dash off in the
pursuit after a male. They seize hold of him, pull him by his legs, by
his wings, by his antennæ, and kill him with their stings. This
pitiless massacre includes even the larvæ and pupæ of the males. The
executioners drag them from their cells, run them through with their
stings, greedily suck the liquids contained in their bodies, and then
cast their remains to the winds. This slaughter goes on for many days,
continuing till the males have been completely got rid of, they not
being able to defend themselves, as they have no stings.
They are allowed to live, however, when they are fortunate enough to
inhabit a hive deprived of its queen. There they even find a place of
perfect safety when they have been driven out of another hive, and may
be met with in this refuge until the month of January. In like manner
the lives of the males are spared in those hives which, instead of a
true queen, have only a female half impregnated, which lays only male
eggs; but a hive of this kind, whose active population cannot be
increased, ends by being abandoned by its inhabitants. The sterility
or absence of the queen entails the dissolution of the society. She
is, in fact, the life and soul of the hive; and without her there is
no hope, no courage, no activity. The populace, abandoned to itself,
falls into anarchy. Famine, pillage, ruin, and death are at its doors.
Having no progeny to set their hopes on, the bees live from one day to
another without a care for the morrow. They leave off working, and
live entirely on theft and rapine, and at last they disappear
entirely. It is a society become rotten and broken up for the want of
a moral tie.
If the loss of the mother bee takes place at a period at which there
still exist in the hive some larvæ of working bees of less than three
days old, the nurse (as we have already said) adopt some of these
larvæ, and make them into queens by means of the physical education
and special nourishment which they give them. In this case, then, the
evil can be repaired; the workers themselves find a remedy without
assistance. But if the hive possesses a degenerate queen, which only
lays male eggs, the intervention of man is necessary to save it, by
the substitution of a properly impregnated queen. If, indeed, a
strange queen wished to penetrate alone into a hive already containing
a sovereign, she would infallibly be stopped at the door and stifled
by the sentinels who guard the entrance to the hive. These would
surround her immediately, and keep her captive under them till she
perished, either through suffocation or hunger. They do not employ
their stings against an intruding queen, except in the case of an
attempt being made to deliver her from their clutches: they get rid of
her by stifling.
When it is wished to introduce into a hive a stranger queen, after
having removed the original sovereign, many precautions must be used
before putting her into the common home. It is only after some time
that the bees become aware of the disappearance of their queen; but
they then manifest great emotion. They run hither and thither, as
though mad, leaving off their work, and making a peculiar buzzing
sound. If you return to them their original sovereign, they recognise
her, and calm is immediately restored; but the substitution of a new
queen for the original sovereign does not produce the same effect in
every case. If you introduce the new queen half a day only after the
removal of the old queen, she is very badly received, and is at once
surrounded, the workers trying to suffocate her. Generally she sinks
under this bad treatment. But if you allow a longer interval to elapse
before you introduce the substitute, the bees, rendered more tractable
by the delay, are better disposed towards her. If you allow an
interregnum of twenty-four hours, the stranger queen is always
received with the honours due to her rank, a general buzzing
announcing the event to the whole population of the hive. They assign
to their adopted queen a train of picked attendants; they draw up in
line on her passing by; they caress her with the tips of their
antennæ; they offer her honey. A little joyful fluttering of the
escort announces that every one in the little republic is satisfied.
The labours out of doors and indoors then begin anew with more
activity than ever.
It is principally during stormy days, when the heat and the
electricity in the air are favourable to the secretion of pollen in
plants, that the bees go into the fields to make their harvest. They
heap up provisions in the hive against the cold season, not
forgetting, however, to watch over the eggs, their future hope, "spem
gentis," as Virgil calls them.
These peaceful occupations are sometimes interrupted by the dire
necessities of war. It happens that the bees of an impoverished hive,
impelled by hunger, that bad counsellor, make up their mind to attack
and to pillage the treasures of a neighbouring hive which is
abundantly stocked with provisions. A savage fight then takes place
between the two battalions. Each one precipitates itself with fury
upon its adversary. Two bees press against and bite each other till
one is overcome. The victor springs upon the back of the vanquished,
squeezes it round the neck with its mandibles, and pierces it between
the rings of its abdomen with its sting. The victorious bee places
itself by the side of its fallen enemy, and resting on four of its
legs, rubs its two hind ones together proudly, as a sign of supreme
triumph. Réaumur relates a strange fact, which he says he often
observed, and which proves that the insects we are treating of do not
fight to satisfy a sanguinary and savage instinct, but (which is less
reprehensible) to satisfy their hunger. Bees attacked by a superior
force are in no danger of losing their lives if their enemies can
induce them to give up their throats--that expression conveys the
idea. Supposing three or four are furiously attacking one bee: they
are pulling it by its legs and biting it on its thorax. The
unfortunate object of this attack has then nothing better to do, to
escape alive from such a perilous situation, than to stretch out its
trunk laden with sweet-scented honey. The plunderers will come one
after the other and drink the honey; then, cloyed, satisfied, having
nothing more to demand, they go their way, leaving the bee to return
to his dwelling-place.
There are also strange fights--regular duels--between the bees of the
same hive. Very hot weather has the effect of irritating them, and
making them boil over with rage. They are then dangerous to man, whom
they attack boldly. But more often it is amongst themselves that they
quarrel. One often sees two bees which meet seize each other by the
neck in the air. It happens also that a bee, in a state of fury,
throws itself on another who is walking quietly and unsuspiciously
along the edge of its hive. When two bees are struggling in this
manner they descend to the ground, for in the air they would not be
able to get purchase enough to be sure of striking each other. They
then engage in a hand-to-hand fight, as the gladiators used formerly
to do in the circus. They are continually making stabs with their
stings, but almost always the point slips over the scales with which
they are covered. The combat is sometimes prolonged during an hour,
before one of them has found the weak point in the other's natural
cuirass, and has buried its terrible weapon in the flesh. The victor
often leaves its sting in the wound which it has made, and then dies,
in its moment of triumph, through the loss of this organ. Sometimes
the two combatants, in spite of long and savage assaults, cannot
succeed in injuring either's solid armour. In such a case they leave
each other, tired of war, and fly away, despairing of obtaining a
victory.
At the end of autumn, when the bees no longer find any flowers in the
fields to plunder, they finish rearing their eggs on the pollen, which
they keep in store, and the queen ceases to lay. Numbed by the cold of
the winter, the workers cease to go out. Crowded together they
mutually warm each other, and thus hold out, when the cold is not too
intense, against the rigour of the frosts. Huddled up between the
cakes of the honeycomb, they wait for the return of fine weather, to
recommence their labours at home and abroad. After two or three years
of this laborious existence the bee dies, but to live again in a
numerous posterity, as Virgil says:--
"At genus immortale manet, multosque per annos
Stat fortuna domus, et avi numerantur avorum!"
There has been a good deal of discussion on the question whether bees
constitute monarchies or republics. According to our opinion, theirs
is a true republic. As all the population is the issue of a common
mother, and as each bee of the female sex can become a queen--that is
to say, a mother-bee, if it receives an appropriate nourishment--it is
manifest that the title of queen has been wrongly given to the
mother-bee. After all, she is nothing more than president of a
republic. The vice-presidents, as we have already pointed out, are all
those females which at any given moment may be called by choice--that
is, by popular election--to fulfil the functions of the sovereign,
when death or accident has put an end to her existence. "There is no
such thing as a king in Nature," said Daubenton one day, in one of his
lectures at the Jardin des Plantes. The audience immediately
applauded, and cried "Bravo!" The honest _savant_ stopped, quite
disconcerted, and asked his assistant naturalist the cause of this
applause, perhaps ironical. "I must have said something stupid,"
repeated poor Daubenton between his teeth, remembering the saying of
Phocion under similar circumstances. "No," replied his assistant
naturalist, "you have said nothing but what is quite true; but,
without meaning it, you have made a political allusion. You spoke
against kings, and our young republicans thought that you were
alluding to Louis XVI." "Indeed," said the coadjutor of Buffon, "I had
no idea that I was talking politics!" The bee republic, this little
animal society, is admirably constituted, and all its citizens obey
its laws with docility.
Bees have often served as an example, proving, according to some, the
marvellous intelligence of certain little animals; according to
others, an insect wonderfully developed. For ourselves, we have never
well understood what people mean by the word _instinct_; and we
frankly grant to the bee intelligence, as we do also to many animals.
The greater number of the acts of their life seem to be the result of
an idea, a mental deliberation, a determination come to after
examination and reflection. The construction of their cells, always
uniform, is, they say, the result of instinct. However, it happens
that under particular circumstances, these little architects know how
to abandon the beaten track of routine, reserving to themselves the
power of returning, when it is useful to do so, to the traditional
principles which ensure the beauty and regularity of their
constructions. Bees have been seen, indeed, to deviate from their
ordinary habits in order to correct certain irregularities--the result
of accident or produced by the intervention of man--which had deranged
their works.
Francis Huber relates that he saw bees propping up with pillars and
flying buttresses of wax a piece of the honeycomb which had fallen
down. At the same time, put on their guard by this sad accident, they
set to work to fortify the principal framework of the other combs, and
to fasten them more securely to the roof of the hive. This took place
in the month of January, and therefore not during the working season,
and when to provide against a distant eventuality was the only
question. M. Waland has reported an analogous observation. Is there
not here, in the first place, a true and excellent reasoning, then an
act, an operation, a work, executed as the result of this reasoning?
Now, an operation which is performed as the result of reasoning, is
attributable to intelligence. Again, the bees give different sorts of
food to the different sorts of larvæ. They know how to change this
food when an accident has deprived the hive of its queen, and it is
necessary to replace her; this is another proof of intelligence.
But it is, above all, in the face of an enemy that the intellectual
faculties of these insects show themselves. There are always at the
entrance of every hive three or four bees, which have nothing else to
do but to guard the door, to keep a watch over incomers and outgoers,
and to prevent an enemy or an intruder from slipping into the
community. When one of them perceives an enemy on the borders of the
hive, it dashes forwards towards it, and by a menacing and significant
buzzing warns it to retire. If it does not understand the warning,
which is a rare occurrence--for men, horses, dogs, and animals of all
kinds know perfectly well the danger to which they expose themselves
by approaching too near a hive in full operation[94]--the bee gets a
reinforcement, and very soon returns to the combat with a determined
battalion. All this is, it seems to us, intelligence.
[94] The bee's sting may lead to very serious consequences. It
often happens that large animals, such as horses or oxen, tied
up in the neighbourhood of a beehive, and which have disturbed
the bees, die in consequence of stings received from them.
[Illustration: Fig. 323.--Sentinel Bees guarding the entrance to the
hive.]
We have just said that there are sentinels at the entrance of every
hive. They touch with their antennæ each individual that wishes to
penetrate into the house. Hornets, the Death's-head Sphinx, slugs,
&c., often try to introduce themselves into the hive. In that case, on
the appeal of the watchful porters, all the bees combine their efforts
to defend the entrance to their habitation. It would be impossible for
them, in fact, to stop the ravages of their enemies when once entered
into the interior. When a sphinx has succeeded in introducing itself
into a hive, it sits down and drinks the honey in great bumpers,
devouring all the provisions: and the unfortunate proprietors of the
house are obliged to emigrate. To stop the entrance of moths which fly
by night, the bees contract, and sometimes barricade, their door with
a mixture of wax and propolis. When a slug or any other large animal
has managed to introduce itself into the interior, they kill it and
wrap it up in a shroud of propolis, as we have already related.
However, they are quite helpless against certain microscopic parasites
which sometimes attack them. The bee-louse, which has been described
and drawn by Réaumur in one of his Memoirs,[95] and the parasite which
was described in 1866 by M. Duchemin, the _Sugar Acarus_, which is
found in the liquid honey of those hives which are attacked by the
disease called the rot (_pourriture_), are the most serious enemies of
the bee. The _Gallerias_ are also terrible enemies to them. Every hive
thus attacked is ruined. These destructive insects attack also the
wild bees, drive them from their nests, and destroy the wax of the
cakes forming the comb. The _Galleria_ impudently makes his home in
the houses of bees, wild as well as domesticated.
[95] Tome v., planche 36.
The habits of bees in their wild state, which make their nests in the
trunks of trees and other cavities, do not differ from those of
domesticated bees. Only the latter become tame with man, getting used
to those who look after them, and becoming less aggressive towards
strangers.
Apiculture, or bee-keeping, is still at the present day an important
business, although honey has lost a great deal of its utility since
the introduction of sugar into Europe. Without entering into many
details on apiculture, that is to say, on the attention it is
necessary to pay to bees, we will mention the principal duties of the
bee-keeper.
When, in the spring, the bees _font la barbe_ (as the French say),
that is, when they are getting ready to swarm, one must watch
narrowly, so as not to lose them. As soon as a swarm has settled on a
tree or on any artificial resting-place prepared on purpose in the
neighbourhood, it is approached, after having covered one's face with
a piece of transparent linen or canvas, or with a hood, and the
cluster is caused to fall into a hive turned upside down. The hive is
then turned up and again put in its place; or else, if it is only to
serve for the conveyance of the swarm to another place, shaken about
before the door of the hive which the swarm is destined to occupy. The
bees then beat to arms, and set to work to enter their new habitation
in a compact column. Fig. 324 represents the manner in which one ought
to proceed in order to gather a swarm of bees, which is fixed on a
branch of a tree, and introduce it into the hive prepared for it. Let
us listen on this subject to an experienced bee-keeper, M. Hamet: "As
soon as a swarm has fixed itself anywhere, and there are only a few
bees fluttering round the cluster, you must make your preparations for
lodging them in a hive you have got ready for the purpose. Some people
rub the hive on the inside with aromatic plants or honey, with the
object of making the bees fix themselves there more surely. This
precaution is not indispensable. What is essential is, that the hive
should be clean, and free from any bad smell. It is a good thing to
pass it beforehand over the flame of a straw fire, which destroys the
eggs of insects and insects themselves which may have lodged in it.
"After having covered your head with a veil, if the swarm has settled
in a difficult place, and you are afraid of being stung, you hold the
hive under the cluster of bees and make them fall into it, either by
shaking the branch to which the swarm is attached, very hard, or by
means of a small broom, or even with the hand, for then they very
rarely sting: it is hardly ever necessary to take any precautions in
approaching them, except for swarms which have been fixed for many
hours, or since the day before. When the bees have fallen in a mass to
the bottom of the hive, you turn this gently over, and place it on a
piece of linen stretched out on the ground near the place where the
swarm was, or on a tray, or simply on the ground itself, if it is dry
and clean. You will have taken care to place on this linen a little
wedge, a stick or a stone, to raise the hive a little, and to leave
room through which the bees may enter. A great part of the bees which
fall into the hive fix themselves on to its sides; but a good number
are dropped on the linen when the hive is turned. This is the manner
in which you act when it is determined to lodge the swarm; but when
the swarm is to be lodged in another hive, as we shall see farther on,
immediately that the bees recognise the lodging which is destined for
them, they set to work to beat to arms, and to enter in a compact
column their new dwelling; those which are fluttering about in the air
are summoned by this call, and are not long in alighting on the spot
where the rest of their companions are fixed. At the end of a quarter
or half an hour, at the most, all, or nearly all, have entered the
hive. A few still hover about round the place where the swarm was
fixed. If the number is considerable, and if many have stopped in this
place, you must make them quit it by placing some offensive herb, such
as celandine, horehound, field camomile, &c., on it, or project the
smoke of a rag upon them, which will drive away the bees and force
them to look for the colony or to return to the mother-hive. You may
also project smoke, but in moderate quantities, on the bees grouped
around and on the borders of the lodging which you have just given
them, and which they will not be long in entering."[96]
[96] "Cours d'Apiculture," pp. 73, 74.
[Illustration: Fig. 324.--Taking a swarm.]
[Illustration: Fig. 325.--Bell-shaped hive.]
[Illustration: Fig. 326.--English hive.]
A good swarm weighs from four to six pounds; one pound contains about
four thousand bees. The second swarm weighs rarely more than two
pounds, and the third still less. You can also form artificial swarms
by drawing off the bees of one hive into another, an operation which
is easy with bell-shaped hives. A glance at Fig. 325, which represents
the common hive of the north of France, that is to say, the
_bell-shaped_, will show how easy it is to effect that drawing off,
or pouring out of the bees, by joining together at their bases two
hives, the one empty, the other containing a swarm. In order to have
control over the bees during the operation, you must slightly stupefy
them with the smoke of a smouldering rag.
Beehives are of a thousand different shapes, each of which has its
particular advantage. They are made of wood and of straw; and the
shapes used in different countries are very various. We give as
examples, Figs. 325, 326, 327, 328, 329.
[Illustration: Fig. 327.--Swiss hive.]
The site, that is, the place where hives stand, is not a matter of
indifference. It is generally supposed that bees ought to be
established in a place fully exposed to the sun, and to the greatest
heat of the day. This is a mistake. M. de Frarière, in his work on
bees and bee-keeping, recommends the hives to be placed under trees,
in such a way that they may be kept in the shade. Fig. 330 shows the
way in which M. de Frarière recommends hives to be arranged.
Dr. Monin, author of an interesting monograph of the bee, published in
1866, after treating of the different arrangements which have been
recommended for hives, concludes thus:--"It is to satisfy all these
requirements that experienced bee-keepers so much recommend for the
hives an exposure to the ten o'clock sun; that is to say, that they
should be turned in such a manner that the sun may shine on their
entrances when it has already attained a certain height above the
horizon, and sufficiently warmed the surrounding air for the bees,
which the brightness of its rays has tempted forth, not to be seized
with cold and numbed before they have been able to return home
again."[97]
[97] "Physiologie de l'Abeille, suivie de l'art de soigner et
d'exploiter les Abeilles d'après une methode simple et facile,"
p. 94. Paris, 1866.
[Illustration: Fig. 328.--Polish hive.]
In the month of March a gathering of wax is made by cutting away the
lower part of the hives, where the cakes have grown old. The principal
honey harvest takes place towards the end of May, June, or July,
according to the place the hives are in. A larger or smaller gathering
takes place according to the quantity of honey ready, and the state of
the season. As the bees will not see the violation of their domicile
and theft of their winter provisions without anger, to get possession
of the honeycomb with which the hive is filled, you must put these
irritable insects into such a state that they are unable to injure
you. They can be rendered peaceable by smoking them. The smoke is
forced into the hive with the assistance of a pair of bellows, the
arrangement of which is shown in Fig. 331. If the fumigation is
prolonged, the bees are very soon heard to beat their wings in a
peculiar manner; they are then in what is called in French _l'état de
bruissement_, or the roaring state. When they stand up on their hind
legs and agitate their wings, you can do with them almost anything you
like--cut away the honeycomb, abstract the eggs, or take out the
honey--without their troubling themselves about it. But this state of
things must not last too long, or you may suffocate your bees. It is a
sort of anæsthesis into which the bees have been thrown; and, as with
men, this must not be prolonged.
[Illustration: Fig. 329.--Garden hive.]
Some bee-keepers, in order to collect the honey harvest, suffocate
their bees by burning sulphur matches. This is a bad practice. "Those
authors who recommend us to suffocate the bees," says M. Hamet, "under
the pretext that their colonies will become too numerous, and who
add, 'You cannot eat beef without killing the ox,' are more stupid
than the animal they have chosen for their comparison." A hive often
produces from twelve to twenty pounds of honey each year, and a
proportional quantity of wax. It may, then, furnish to the bee-keeper
an important revenue, especially as the rearing of bees gives scarcely
any trouble, and involves scarcely any labour, as it is only necessary
to select a spot with a proper exposure and well supplied with
flowers.
[Illustration: Fig. 330.--Hives under the shade of trees.]
[Illustration: Fig. 331.--Bellows used to stupefy Bees].
We possess in Europe two species or races of bees--the Common Bee
(_Apis mellifica_), and the Ligurian Bee (_Apis ligustica_), whose
abdomen is tawny, with the rings bordered with black. It is this
latter species of which Virgil sang, and which is found in Italy and
Greece. It has been remarked that the Ligurian bee pierces the
calices, at their bases, of those flowers which are too long for it to
penetrate into easily, and thus gets possession of the honey, whilst
the common bees pass these flowers over. This observation proves that
the former is the more intelligent of the two races. In Egypt a bee is
reared called the Banded Bee (_Apis fasciata_).
Ten or twelve other species of honey-bees exist in Senegal, the Cape
of Good Hope, Madagascar, East Indies at Timor (_Apis Peronii_), &c.
The European bee has been acclimatised in America, but it soon returns
to its wild state, as indeed do all our domestic animals when
transported to the other hemisphere. At the Cape of Good Hope the
Hottentots seek greedily after the nests of wild bees, a bird called
the Indicator guiding them in this chase. This bird is observed
flitting about from tree to tree, making a little significant cry.
They have only then to follow this bird-informer, for it will not be
long in stopping before some hollow tree which contains a nest of
bees. The Hottentots always acknowledge its services by leaving it a
part of the booty.
Fenimore Cooper, the novelist, tells us, in his work entitled "The
Prairie," how the bee-hunters in America discover the wild hives. They
place on a plank, covered with white paint still moist, a piece of
bread covered with sugar or honey. The bees, in plundering this bread,
get some of the paint on their bodies, and are then more easily
tracked when they return to their hives. In North America they are, as
it were, the harbingers of civilisation. When the Indians perceive a
swarm trying to establish themselves in the solitudes of their
forests, they say to one another, "The white man is approaching; he
will soon be here." True pioneers of civilisation, these insects seem
to announce to the forests and deserts of the New World that the reign
of Nature has passed away, and that now the social state has begun to
play its part--a part that will never end.
The bees peculiar to South America have no sting: these are the
_Meliponas_. These (Fig. 332) are more compactly formed than our bees,
have a more hairy body, and are smaller in size. Very numerous in the
virgin forests, they make their nests in the hollows of trees. The wax
produced by them is brown, and of an indifferent quality. Under thick
leaves of wax are found cakes, with hexagonal cells, containing the
males, females, and neuters. The cells of the larvæ are closed by the
workers, and the larvæ spin themselves a cocoon inside. All around
the cradles are large round cells, entirely different in form from the
cradles, in which the honey is stored. It is probable that the males,
the workers, and the females, live together in great harmony, and even
that there is in each nest more than one female, for the absence of
the sting must prevent any combats. If a few cakes of the _Melipona's_
honeycomb are moved into the hollow of a tree, they always found there
a new colony. We may conclude from this that the workers procure for
themselves females whenever they want them by means of a special sort
of food. The savage inhabitants of the American forests collect this
honey; but, with the carelessness of uncivilised man, they at the same
time destroy the nests of these precious insects. They have now begun
to domesticate certain species of _Meliponas_, by introducing them
into earthen pots or wooden cases. These insects have been brought to
Europe, but they have always perished in the first cold weather.
During the summer of 1863 there was, in the Museum of Natural History
of Paris, a nest of _Melipona scutellaris_ from Brazil, but it did not
prosper.
[Illustration: Fig. 332.--A species of Melipona.]