Gen. LAMPROGASTER, _Macq._

101. LAMPROGASTER ZONATA, n. s., fœm. Nigra, capite flavo nigro-vario,

antennis piceis, thorace flavo-quadrivittato, abdomine

flavo-bifasciato, tarsis albis, alis subcinereis maculis costalibus

fasciâque fuscis.

_Female._ Black, shining. Head pale yellow, with four black shining

stripes in front; vertex, with a broad dull black stripe which

occupies the whole breadth behind, is notched on each side between

the eyes, and is narrower in front. Antennæ piceous; 3rd joint

nearly linear, rounded at the tip; arista minutely plumose, more

than twice the length of the 3rd joint. Thorax with four yellow

stripes, one on each side in front of the wings, and one on each

side of the scutum. Abdomen with two yellow bands; 1st slender; 2nd

apical, dilated in the middle of the fore border; knees tawny; tarsi

white, with blackish tips. Wings greyish, slightly lurid and with

brown marks at the base and along the costa, and with a brown band

which extends along the præbrachial vein to half the space between

the latter and the border; discal transverse vein straight, upright,

parted by about one-third of its length from the border, and by much

more than its length from the præbrachial transverse, which is

oblique. Halteres tawny. Length of the body 5 lines; of the wings 10

lines.

Singapore.

102. LAMPROGASTER GLABRA, n. s., mas. Nigra, antennis piceis,

abdominis fasciâ subapicali flavâ, tarsis albis, alis sublimpidis

maculis basalibus fasciisque quatuor fuscis.

_Male._ Black, shining. Antennæ piceous, in structure like those of

_L. zonata_. Abdomen with a slender yellow band near the tip. Tarsi

white, with black tips. Wings nearly limpid, with four brown bands,

slightly testaceous and with some indistinct brown marks at the

base; 1st and 3rd bands entire; 1st broader and darker than the

others; 2nd and 4th interrupted; veins black, testaceous towards the

base; discal transverse vein straight, upright, parted by one-fourth

of its length from the border, and by more than its length from the

præbrachial transverse vein, which is also upright. Halteres tawny.

Length of the body 3 lines; of the wings 6 lines.

Singapore.

103. LAMPROGASTER TRANSVERSA, n. s., fœm. Nigra, capite fulvo fasciis

duabus nigris unâque albidâ, antennis fulvis, thoracis vittis

quatuor dorsalibus fulvis duabusque lateralibus albidis, abdomine

nigro-purpureo basi fulvo maculisque duabus subapicalibus flavis,

pedibus fulvis, tarsis albidis, alis subcinereis fusco sexfasciatis.

_Female._ Black. Head tawny, with two black bands above and a whitish

band in front. Antennæ tawny. Thorax with four dorsal tawny stripes

which are confluent in front and with two lateral whitish stripes.

Abdomen blackish-purple, tawny at the base, and with a yellow spot

on each side near the tip which is lanceolate. Legs tawny; tarsi

whitish, with black tips; hind tibiæ with brownish tips. Wings

slightly greyish, with about six irregular macular brown bands;

veins brown, tawny at the base; discal transverse vein nearly

straight and upright, parted by much less than its length from the

border, and by more than its length from the præbrachial transverse

vein, which is oblique. Halteres testaceous. Length of the body 4

lines; of the wings 8 lines.

Malacca.

104. LAMPROGASTER VITTATA, n. s., mas. Nigra, capite ex parte flavo,

antennis fulvis, thorace flavo-bivittato, scutello flavo-marginato,

abdominis vittâ dorsali flavâ, tarsis albis, alis nigricantibus basi

fasciisque quatuor albidis.

_Male._ Black, shining. Head pale yellow in front, beneath and about

the eyes. Antennæ tawny. Thorax with two yellow stripes; scutellum

with a yellow border. Pectus with an oblique yellow band on each

side. Abdomen with a yellow dorsal stripe. Tarsi white, with black

tips. Wings blackish, whitish at the base, and with four whitish

bands; 1st band irregular; 2nd and 3rd entire; 4th interrupted;

veins black; discal transverse vein straight, upright, parted by

about one-fourth of its length from the border, and by much more

than its length from the præbrachial transverse vein, which is

slightly oblique. Halteres testaceous. Length of the body 3 lines;

of the wings 6 lines.

Singapore.

105. LAMPROGASTER GUTTATA, n. s., fœm. Cinerea, capite nigro

trimaculato anticè testaceo, antennis fulvis, thorace

cano-quinquevittato, lateribus testaceis, abdominis fasciâ anticâ

fulvâ, tarsis albidis, alis subcinereis fasciis octo subinterruptis

fuscis.

_Female._ Black, with cinereous tomentum. Head partly dull testaceous

in front; vertex with three black spots, two in front and one

behind. Antennæ tawny; arista pubescent. Thorax with five hoary

stripes which are connected in front by a transverse band; sides

testaceous. Pectus with an oblique dull testaceous stripe on each

side. Abdomen with a tawny band on the hind border of the first

segment; oviduct slender, lanceolate. Tarsi whitish, with black

tips. Wings greyish, with about eight irregular and partly

interrupted brown bands; veins and halteres testaceous; discal

transverse vein nearly straight and upright, parted by about

one-fourth of its length from the border, and by more than its

length from the præbrachial transverse vein. Length of the body 3

lines; of the wings 6 lines.

Singapore.

106. LAMPROGASTER TRUNCATULA, n. s., fœm. Nigra robusta, abdominis

apice compresso lanceolato, tarsis albis, alis subcinereis lituris

transversis fuscescentibus fasciisque duabus nigro-fuscis.

_Female._ Black, stout, slightly shining. Arista pubescent. Abdomen

compressed and lanceolate at the tip. Tarsi white, with black tips.

Wings slightly greyish, with several slight transverse brownish

marks, and with two blackish-brown bands; the 1st broad, basal, not

extending beyond half the breadth from the costa; the 2nd narrow,

entire, near the 1st; veins black; discal transverse vein straight

and upright, parted by one-third of its length from the border, and

by very much more than its length from the præbrachial transverse

vein. Halteres testaceous. Length of the body 2½ lines; of the wings

5 lines.

Singapore.

Catalogue of the dipterous insects collected at Singapore and Malacca · 第 59 / 79 题