conical, arista bare; pectus slightly covered with cinereous tomentum;
legs testaceous, with a few very indistinct blackish marks; fore femora
black, testaceous towards the base; fore tibiæ black; fore tarsi
snow-white, black at the base; hind tarsi whitish; wings greyish, with
two almost obsolete brownish bands; discal transverse vein parted by
less than its length from the border and by about four times its length
from the præbrachial transverse. Length of the body 5 lines; of the
wings 7 lines.
Gen. CARDIACEPHALA, _Macq._
157. CARDIACEPHALA DEBILIS, n. s. _Foem._ Testacea, gracilis; thorace
linea transversa interrupta nigra; pedibus anticis parvis, posterioribus
longis, tarsis albis brevissimis, tibiis anterioribus piceis; alis
limpidis apice cinereis, fascia lata pallide lutea.
_Female._ Testaceous, slender. Vertex somewhat luteous; third joint of
the antennæ conical, very short, arista bare; thorax attenuated in
front, with a transverse interrupted black line hindward; abdomen longer
than the thorax, lanceolate hindward; fore legs short, posterior legs
long; tarsi white, very short; anterior tibiæ piceous; middle femora
rather thicker than the hind pair; wings limpid, grey towards the tips,
with a pale luteous middle band; veins testaceous, cubital and
præbrachial converging towards the tips of the wings, discal transverse
vein straight, parted by less than its length from the border and by
about thrice its length from the præbrachial transverse. Length of the
body 3-1/2 lines; of the wings 5 lines.
Subfam. PSILIDES, _Walk._
Gen. LISSA, _Meigen_.
158. LISSA CYLINDRICA, n. s. _Mas._ Cyanea, gracilis, cylindrica;
antennis piceis basi albidis, arista plumosa; abdomine piceo basi
apiceque cyaneis; pedibus albidis, femoribus posterioribus nigris apice
albidis, femoribus posticis subtus spinosis, tibiis posticis nigris;
alis subcinereis apice subfuscis; halteribus albidis apice nigris.
_Male._ Blue, slender, cylindrical. Head broader than the thorax;
antennæ whitish, third joint piceous, arista plumose; abdomen piceous,
slightly increasing in breadth to the tip, blue at the base and at the
tip, hind borders of the first and second segments whitish; legs
whitish, posterior femora black, whitish at the base and towards the
tips, hind femora spinose beneath, hind tibiæ black; wings slightly
greyish, brownish towards the tips; veins black, præbrachial and
perbrachial very near together for more than half their length, discal
transverse vein straight, parted by more than its length, and by about
four times its length from the præbrachial transverse; halteres whitish,
with black tips. Length of the body 3-1/2 lines; of the wings 5 lines.
Gen. NERIUS, _Fabr._
159. Nerius duplicatus, _Wied. Auss. Zweifl._ 11. 553. 8. Inhabits also
Java.
Subfam. OSCINIDES, _Haliday_.
Gen. OSCINIS, _Fabr._
160. OSCINIS LINEIPLENA, n. s. _Mas._ Fusca; capite subtus testaceo apud
oculos albo, vitta frontali alba; thorace pectoreque lineis sex albidis;
abdomine sordide testaceo, pedibus albidis, tibiis tarsisque apice
femoribusque anticis nigris; alis subcinereis, halteribus albidis.
_Male._ Brown. Head testaceous in front and beneath, white about the
eyes, with a white stripe on the front; thorax and pectus with six
whitish stripes on each, thorax with an indistinct middle testaceous
stripe; abdomen dull testaceous; legs whitish; tibiæ and tarsi at the
tips and fore femora black; wings greyish; veins black, discal
transverse vein oblique, parted by more than its length from the border,
and by full twice its length from the præbrachial transverse; halteres
whitish. Length of the body 2 lines; of the wings 3 lines.
161. OSCINIS NOCTILUX, n. s. _Mas._ Atra; capite pallide flavo subtus
albo; antennis luteis, arista nuda; scutello, maculis duabus
pectoralibus abdominisque apice albis; tibiis tarsisque intermediis
testaceis; alis nigricantibus postice cinereis, halteribus niveis.
_Male._ Black. Head pale yellow, black hindward, white beneath; antennæ
pale luteous, third joint very short, arista bare; scutellum white;
pectus with a white spot on each side; abdomen white at the tip; middle
legs with testaceous tibiæ and tarsi; hind wings blackish, cinereous
hindward; halteres snow-white. Length of the body 3/4 line; of the wings
1-1/2 line.
Subfam. GEOMYZIDES, _Fallen_.
Gen. DROSOPHILA, _Fallen_.
162. DROSOPHILA? FINIGUTTA, n. s. _Mas._ Fulva; capite antice testaceo,
antennis testaceis, articulo tertio conico; abdomine maculis quatuor
apicalibus nigris, tarsis nigris; alis cinereis venis nigris.
_Male._ Tawny. Head testaceous in front; antennæ testaceous, third joint
conical; abdomen with two black spots on each side at the tip; legs
testaceous; tarsi black; wings grey; veins black, discal transverse vein
straight, parted by full half its length from the border and by full
twice its length from the præbrachial transverse; halteres testaceous.
Length of the body 1-1/2 line; of the wings 3 lines.
163. DROSOPHILA? MELANOSPILA. _Foem._ Testacea; antennarum articulo
tertio conico, arista plumosa; thoracis disco abdominisque guttis duabus
apicalibus atris; tarsis piceis; alis subcinereis.
_Female._ Testaceous. Vertex luteous; third joint of the antennæ
conical; arista plumose; disk of the thorax and a dot on each side of
the tip of the abdomen deep black; tarsi piceous; wings slightly
greyish; veins black, discal transverse vein straight, parted by about
half its length from the border and by twice its length from the
præbrachial transverse. Length of the body 1 line; of the wings 2 lines.
164. DROSOPHILA? IMPARATA. _Foem._ Pallide testacea; pedibus
pallidioribus; alis subcinereis, venis pallidis.
_Female._ Pale testaceous, with a few bristles. Legs paler than the
body; wings slightly greyish; veins pale, discal transverse vein
straight, parted by about twice its length from the border and by more
than twice its length from the præbrachial transverse. Length of the
body 3/4 line; of the wings 1-1/2 line.
Subfam. HYDROMYZIDES, _Haliday_.
Gen. EPHYDRA, _Fallen_.
165. EPHYDRA? TACITURNA, n. s. _Foem._ Atra, nitens, antennis nigris,
arista plumosa, abdomine nigro-cupreo, pedibus nigro-piceis, alis
nigricantibus, venis nigris.
_Female._ Deep black, shining. Antennæ black, third joint linear, rather
long, arista plumose; legs blackish-piceous; wings blackish; veins
black, discal transverse vein straight, parted by a little more than its
length from the border. Length of the body 1-1/2 line; of the wings
2-1/2 lines.
Fam. PHORIDÆ, _Haliday_.
Gen. PALLURA, n. g.
_Mas._ _Corpus_ latiusculum, pubescens. _Os_ retractum. _Oculi_
pubescentes. _Antennæ_ brevissimæ; arista longissima. _Scutellum_
magnum, conicum. _Abdomen_ subellipticum, thorace non longius. _Pedes_
latiusculi, pubescentes, non setosi. _Alæ_ amplæ, venis æqualibus.
_Male._ Body rather broad, pubescent. Proboscis small, withdrawn; eyes
pubescent; antennæ very short, arista very long; scutellum large,
conical, very prominent, extending beyond the base of the abdomen;
abdomen nearly elliptical, not longer than the thorax; legs rather
broad, pubescent, without bristles; wings rather long and broad; veins
of equal size, costal vein ending at rather before half the length of
the wing, radial ending at somewhat in front of the tip of the wing,
cubital ending at hardly in front of the tip, præbrachial ending at a
little behind the tip, pobrachial ending on the hind border at half the
length of the wing, discal transverse vein straight, parted by more than
twice its length from the border and from the præbrachial transverse.
166. PALLURA INVARIA. _Mas._ Lutea, immaculata, alis cinereis basi
luteis, apice nigricantibus, venis nigris robustis.
_Male._ Luteous, of one colour. Wings grey, luteous at the base,
blackish towards the tips; veins black, robust. Length of the body 3
lines; of the wings 6 lines.
Fam. HIPPOBOSCIDÆ, _Leach_.
Gen. ORNITHOMYIA, _Leach_.
167. Ornithomyia parva?, _Macq. Hist. Nat. Dipt._ 11. 2. 279. 3.
KEY ISLAND.
Fam. ASILIDÆ, _Leach_.
Subfam. LAPHRITES, _Walk._
Gen. LAPHRIA, _Fabr._
1. LAPHRIA PARADISIACA, n. s. _Mas._ Cuprea, aureo pilosa, capite
pectoreque argenteis albo pilosis, mystace subaurato setis nonnullis
nigris, abdomine apice purpureo subtus albido piloso, pedibus
cyaneo-purpureis albido pilosis, femoribus cyaneo-viridibus, alis
nigricantibus basi cinereis, halteribus albidis nigro notatis.
_Male._ Cupreous, with gilded hairs. Head and pectus silvery, with white
hairs; mystax slightly gilded, with a few long black bristles; antennæ
and mouth black; abdomen purple at the tip, underside clothed with long
whitish hairs, silvery white at the base, the following segments
bordered with silvery white; legs blue and purple, thickly clothed with
long whitish hairs, femora bluish-green, fore tibiæ with pale gilded
down beneath, hind tibiæ with a black bristly apical tuft beneath; wings
blackish, grey towards the base; halteres whitish, marked with black.
Length of the body 11 lines; of the wings 20 lines.
2. LAPHRIA PLACENS, n. s. _Mas._ Cyanea, capite aurato, mystace setis
paucis longis nigris; antennis nigris, articulo tertio fusiformi;
pectore albido, abdomine angusto, femoribus intus tibiisque purpureis;
alis nigricantibus basi cinereis, halteribus piceis.
_Male._ Blue. Head gilded in front, whitish behind; mystax with a few
long black bristles; proboscis and antennæ black, third joint of the
latter fusiform; pectus whitish; abdomen cylindrical, much narrower than
the thorax, and about twice its length; femora on the inner side and
tibiæ purple, tarsi black; wings blackish, cinereous towards the base;
halteres piceous. Length of the body 4-1/2 lines; of the wings 8 lines.
Subfam. ASILITES, _Walk._
Gen. ASILUS, _Linn._
3. ASILUS SUPERVENIENS, n. s. _Mas._ Cinereous, capite subaurato,
mystace aurato setis paucis nigris, thorace vittis tribus latissimis
nigris, abdomine fulvescenti-cinereo, pedibus rufescentibus, femoribus
nigro vittatis, tarsis nigris, alis cinereis apice nigricantibus,
halteribus testaceis.
_Male._ Cinereous. Head slightly gilded, pale cinereous, and clothed
with pale hairs behind; mystax composed of gilded bristles, above which
there are a few shorter black bristles; antennæ black, third joint
elongate-fusiform, arista much longer than the third joint; thorax with
three very broad hardly divided black stripes; abdomen with a slight
fawn-coloured tinge, tip black, sexualia very small; legs reddish,
femora striped above with black, tarsi black, reddish at the base; wings
cinereous, blackish towards the tips; halteres testaceous. Length of the
body 8 lines; of the wings 14 lines.
Gen. OMMATIUS, _Illiger_.
4. Ommatius noctifer, _Walk._ See page 88.
Fam. EMPIDÆ, _Leach_.
Gen. HYBOS, _Fabr._
5. HYBOS DEFICIENS, n. s. _Mas._ Niger, thorace fulvo globoso macula
dorsali nigra, abdomine basi fulvo, pedibus anterioribus testaceis,
femoribus posticis subtus spinosis, alis cinereis apice obscurioribus,
stigmate venisque nigris, halteribus testaceis, apice piceis.
_Male._ Black. Thorax and pectus tawny, the former globose, with a black
dorsal spot; abdomen tawny at the base; anterior legs testaceous, hind
femora spinose beneath; wings grey, darker at the tips; stigma and veins
black; halteres testaceous, with piceous tips. Length of the body 2
lines; of the wings 4 lines.
Fam. SYRPHIDÆ, _Leach_.
Gen. ERISTALIS, _Latr._
6. Eristalis resolutus, _Walk._ See p. 95.
Gen. BACCHA, _Fabr._
7. BACCHA PURPURICOLA, n. s. _Foem._ Purpureo-fulva; capite chalybeo;
antennis rufis; pedibus fulvis; tibiis posticis apice tarsisque posticis
basi piceis; alis nigricantibus, apud costam obscurioribus, spatio
apicali subcostali cinereo; halteribus testaceis.
_Female._ Tawny, tinged with purple. Head chalybeous; antennæ red; legs
tawny, hind tibiæ piceous towards the tips, hind tarsi piceous towards
the base; wings blackish, darker along the costa, cinereous towards the
tips with the exception of the costa; halteres testaceous. Length of the
body 5-1/2 lines; of the wings 9 lines.
Fam. MUSCIDÆ, _Latr._
Subfam. SARCOPHAGIDES, _Walk._
Gen. SARCOPHAGA, _Meigen_.
8. SARCOPHAGA BASALIS, n. s. _Mas._ Nigra, subaureo tomentosa; capite
aurato; thorace vittis tribus nigris; abdomine albido tessellato; alis
cinereis; venis lurido marginatis; alulis testaceis.
_Male._ Black, with slightly gilded tomentum. Head gilded; frontalia
deep black, hardly widening in front; thorax with three black stripes,
an indistinct blackish line on each side of the middle stripe; abdomen
tessellated with white; wings grey; veins bordered with a lurid hue,
especially towards the costa; præbrachial vein forming a slightly acute
angle at its flexure, near which it is much curved inward, and is thence
straight to its tip; discal transverse vein slightly curved inward near
its hind end, parted by a little more than half its length from the
border and from the præbrachial transverse; alulæ testaceous. Length of
the body 5-1/2 lines; of the wings 9 lines.
Subfam. MUSCIDES, _Walk._
Gen. IDIA, _Meigen_.
9. Idia xanthogaster, _Wied. Auss. Zweifl._ 11. 349. 2. Inhabits also
Hindostan and Java.
10. Idia testacea, _Macq. Hist. Nat. Dipt._ 77. 246. 3. Inhabits also
Mauritius.
Gen. MUSCA, _Linn._
11. Musca obtrusa, _Walk._ See p. 105.
Subfam. ANTHOMYIDES, _Walk._
Gen. ARICIA, _Macq._
12. ARICIA VICARIA, n. s. _Foem._ Fulva, subtus testacea; capite nigro,
apud oculos albo; antennis testaceis; alis cinereis, apud costam
luridis.
_Female._ Tawny, testaceous beneath. Head black, white about the eyes;
antennæ testaceous; abdomen clothed with short black bristles; legs
testaceous, tarsi piceous; wings grey, with a lurid tinge towards the
costa; veins black, discal transverse vein nearly straight, parted by
about its length from the border, and by a little more than its length
from the præbrachial transverse; alulæ slightly testaceous; halteres
testaceous. Length of the body 3-1/2 lines; of the wings 6 lines.
13. ARICIA SQUALENS, n. s. _Foem._ Nigra, cinereo tomentosa; facie
argentea; antennis testaceis; thorace vittis nigris vittisque duabus
lateralibus latis testaceis; abdomine obscure testaceo; pedibus piceis;
femoribus nigris; tibiis anticis testaceis; alis cinereis; apud costam
subluridis; venis halteribusque testaceis.
_Female._ Black, with cinereous tomentum. Face silvery white; antennæ
pale testaceous, third joint long, linear, extending to the epistoma;
thorax with black stripes, and on each side with a broad testaceous
stripe; abdomen dull testaceous; legs piceous; femora black, fore tibiæ
testaceous; wings grey, with a lurid tinge towards the costa; veins
testaceous, discal transverse vein very slightly curved inward, parted
by much less than its length from the border, and by a little more than
its length from the præbrachial transverse; alulæ whitish; halteres
testaceous. Length of the body 3 lines; of the wings 6 lines.
Subfam. ORTALIDES, _Haliday_.
Gen. LAMPROGASTER, _Macq._
14. LAMPROGASTER VENTRALIS, n. s. _Foem._ Testaceo-cinerea; capite apud
oculos albo, vertice luteo, facie pallide fulva; thorace lineis septem
indistinctis nigricantibus; abdomine fusco maculis dorsalibus canis,
subtus cavo lateribus ferrugineis; pedibus nigris, tibiis ferrugineo
fasciatis; alis limpidis basi subtestaceis, fasciis incompletis
guttisque fuscis apud costam nigricantibus.
_Female._ Cinereous, with a testaceous tinge. Head white about the eyes,
vertex luteous; face pale tawny, with white grooves for the antennæ;
antennæ tawny, small; arista slightly plumose at the base; thorax with
seven indistinct blackish lines; abdomen brown, with dorsal hoary nearly
triangular spots, under side marsupial-like or with a pouch, ferruginous
on each side; legs black, each tibia with a ferruginous band; wings
limpid, slightly testaceous at the base, with brown dots and bands, the
latter abbreviated hindward, blackish towards the costa; veins black,
testaceous towards the base; discal transverse vein straight, parted by
about one-third of its length from the border and by much more than its
length from the præbrachial transverse; alulæ cinereous; halteres
testaceous. Length of the body 5 lines; of the wings 10 lines.
Gen. TRYPETA, _Meigen_.
15. TRYPETA RORIPENNIS, n. s. _Foem._ Fusca; capite nigro, facie alba;
antennis nigris rufo-fasciatis; thorace vittis quatuor canis; abdominis
segmentis testaceo marginatis; pedibus nigris, tarsis halteribusque
testaceis; alis nigris, punctis plurimis albis.
_Female._ Brown. Head black; face white; antennæ black, third joint red,
linear, rather long, black towards the tip; arista plumose; thorax with
four hoary stripes; abdominal segments with testaceous hind borders;
legs black, tarsi testaceous; wings black, with very numerous white
points, a few of which are rather larger than the others; discal
transverse vein straight, parted by less than its length from the
border, and by more than twice its length from the præbrachial
transverse; halteres testaceous. Length of the body 2 lines; of the
wings 4 lines.
Catalogue of Hymenopterous Insects collected by Mr. A. R. WALLACE at the
Islands of Aru and Key. By FREDERICK SMITH, Esq., Assistant in the
Zoological Department, British Museum. Communicated by W. W. SAUNDERS,
Esq., F.R.S., V.P.L.S.
[Read December 3rd, 1858.]
This Collection of Hymenoptera is the most important contribution which
has been made to the Aculeata through the exertions of Mr. Wallace; in
point of geographical distribution, it adds much to our knowledge. In
the Aru, Key, and neighbouring islands, we meet with the extreme range
of the Australian insect-fauna; and as might be expected, it is found
amongst the Vespidious Group, and in one or two instances in the
Formicidæ. The latter, being frequently conveyed from one island to
another, can perhaps scarcely be considered indicative of natural
geographical distribution. Of the forty-six species of the Formicidous
Group, only six were previously known to science. Of the genus
_Podomyrma_ here established, one species only, from Adelaide, was
previously known; it is one of the most distinct and remarkable genera
in the family. The _Pompilidæ_ are species of great beauty, some closely
resembling those of Australia in the banding and maculation of their
wings; amongst the _Vespidæ_ will be found some of the most elegant and
beautiful forms in the whole of that protean family of Hymenoptera.
Fam. ANDRENIDÆ.
Gen. PROSOPIS.
1. PROSOPIS MALACHISIS. _P._ nigro-cæruleo-viridis, nitida et delicatulè
punctata; alis hyalinis.
_Female._ Length 4-1/2 lines. Deep blue-green, with tints of purple in
certain lights, particularly on the head, the clypeus with a central
longitudinal ridge, its anterior margin slightly emarginate; the
flagellum rufo-piceous beneath, the ocelli white. Thorax: the wings
hyaline and brilliantly iridescent; the legs dark rufo-piceous with a
bright purple tinge. Abdomen delicately punctured, the head and thorax
more strongly so; the latter with a semicircular enclosed space at its
base, which is smooth and shining.
_Hab._ Key Island.
Gen. NOMIA.
1. NOMIA CINCTA. _N._ nigra, capite thoraceque punctatis, pedibus
ferrugineis; segmentis abdominis apice fulvo-testaceo late fasciatis.
_Female._ Length 5 lines. Black: the two basal joints of the flagellum,
the apical margin of the clypeus, the labrum, mandibles, and legs
ferruginous; the wings fulvo-hyaline, the nervures ferruginous, the
tegulæ more or less rufo-testaceous; the sides of the metathorax with
tufts of pale fulvous pubescence and the floccus on the posterior femora
of the same colour, the tibiæ and tarsi with short ferruginous
pubescence. Abdomen shining, the apical margins of the segments broadly
fulvo-testaceous, very bright, having a golden lustre.
_Hab._ Key Island.
2. NOMIA LONGICORNIS. _N._ nigra, lucida et delicatulè punctata, facie
pube brevi griseâ tectâ, femorum posticorum flocco pallido, tibiis
externè fusco-pubescentibus; maris antennis, capite thoraceque
longioribus.
_Male._ Length 4 lines. Brassy, with tints of green on the clypeus,
metathorax, and thorax beneath; the head and thorax very closely and
finely punctured; the clypeus produced and highly polished; the
mandibles rufo-testaceous, the antennæ as long as the head and thorax.
Thorax: the wings hyaline and splendidly iridescent, the tegulæ and the
tarsi rufo-testaceous. Abdomen closely punctured, the apical margins of
the segments smooth and shining; the head and thorax above with a pale
fulvous pubescence, that on the sides of the metathorax and legs pale
and glittering; the abdomen has a pale scattered glittering pubescence.
_Hab._ Aru.
3. NOMIA DENTATA. _N._ nigra et punctata, facie metathoracisque
lateribus cinereo-pubescentibus, postscutello medio unidentato. _Mas._
antennis filiformibus longitudine thoracis.
_Female._ Length 5 lines. Black; head and thorax rather finely
punctured; the face covered with short cinereous pubescence; the clypeus
naked and much produced, the anterior margin and the tips of the
mandibles ferruginous; the cheek with long whitish pubescence. Thorax:
the sides of the metathorax, the floccus on the posterior femora and the
postscutellum with whitish pubescence, the latter produced in the middle
into a blunt tooth; the legs fusco-ferruginous, with the anterior tibiæ
and apical joints of the tarsi brighter; wings hyaline and iridescent.
Abdomen shining and punctured, the apical margins of the two basal
segments broadly depressed, and more finely and closely punctured than
the rest; the apical margins of the second, third, and fourth segments
pale testaceous; the apical margins of the two basal segments narrowly
fringed with white pubescence, usually more or less interrupted in the
middle.
_Male._ Resembles the female very closely, but has the face much more
pubescent; the antennæ filiform and longer than the head and thorax; the
scutellum armed at its posterior lateral angles with an acute tooth; the
metathorax truncate and slightly concave, its base with short
longitudinal grooves, the lateral margins fringed with long pubescence.
_Hab._ Aru.
Subfam. DASYGASTRÆ.
Gen. MEGACHILE, _Latr._
1. MEGACHILE LATERITIA. _M._ nigra, abdomine pube ferrugineâ vestito,
alis fuscis.
_Female._ Length 8 lines. Black; head and thorax very closely and finely
punctured; the mandibles with a single blunt tooth at their apex; the
anterior margin of the clypeus transverse. Thorax: the wings brown, the
posterior pair palest, their base subhyaline. Abdomen clothed with
bright brick-red pubescence above and beneath; the basal segment with
bright yellow pubescence above.
_Hab._ Aru.
2. MEGACHILE SCABROSA. _M._ nigra, metathorace anticè rudè scabrato,
abdomine subtùs nigro-pubescente.
_Female._ Length 5-1/2 lines. Black; the clypeus, mesothorax anteriorly,
and the posterior tibiæ outside coarsely rugose, the roughness on the
thorax consisting of transverse little elevated points; the face with a
thin griseous pubescence; the anterior margin of the clypeus fringed
with fulvous hairs; the cheeks have a long pale fulvous pubescence.
Thorax: the wings hyaline, the nervures black. Abdomen smooth and
shining, with black pubescence beneath; beneath, the apical margins of
the segments with a fringe of very short white pubescence.
_Hab._ Aru.
3. MEGACHILE INSULARIS. _M._ nigra, nitida, delicatulè punctata, facie
pube pallidè fulvâ vestitâ, abdomine subtùs pube lætè ferrugineâ
vestito, alis hyalinis.