69. SYSTROPUS SPHEGOIDES, n.s. _Mas._ Niger, capite albido-testaceo,
antennis apices versus lanceolatis, thorace strigis quatuor lateralibus
pallide flavis, abdomine lurido basi et apicem versus nigro,
petiolo longissimo, femoribus subtus tibiisque apice luridis, alis
nigricante-cinereis, halteribus albidis nigro fasciatis.
_Male._ Black; head white behind, whitish testaceous in front about
the eyes; proboscis longer than the breadth of the head, its sheaths
diverging and convoluted at the tips; antennæ a little longer than the
proboscis, lanceolate towards the tips; thorax with two pale-yellow
streaks on each side, one in front, the other behind the wing; abdomen
lurid, black at the base, above, and towards the tip, where it is
fusiform; its petiole very long and slender; femora beneath and tibiæ
towards the tips lurid; wings blackish grey; veins black; halteres
whitish, with a black subapical band. Length of the body 7 lines; of the
wings 8 lines.
Fam. DOLICHOPIDÆ, _Leach_.
Gen. PSILOPUS, _Meigen_.
70. PSILOPUS SPECTABILIS, n. s. _Mas._ Aureo-viridis, capite
purpurascente-cyaneo, antice argenteo, antennis testaceis, thorace
vittis tribus cupreis, scutello cyaneo, abdominis lateribus cupreis,
pedibus flavis, alis albis, costa lituris duabus costalibus
lutescentibus, halteribus testaceis.
_Male._ Bright golden green; head purplish blue, with silvery tomentum
in front; antennæ testaceous; arista black, shorter than the thorax;
thorax with three bright cupreous stripes; scutellum blue; pectus
silvery; abdomen bright cupreous along each side; legs yellow; tarsi
black towards the tips; wings white, brown along the costa and on more
than one-third of the length from the tips, with the exception of the
hind border; the costal brown part including two transverse lutescent
marks, beyond which there is a brown band; veins black; fore branch of
the præbrachial vein nearly straight; discal transverse vein straight;
halteres testaceous. Length of the body 4 lines; of the wings 8 lines.
71. PSILOPUS FILIFER, n. s. _Mas._ Viridescente-cyaneus, capite
pectoreque argenteis, antennis pedibusque nigris, arista longissima,
abdomine viridi fasciis nigris, tibiis anterioribus albidis, alis
subcinereis. _Foem.?_ Viridis, capite cyaneo, tibiis anterioribus
testaceis.
_Male._ Greenish blue; head and pectus with silvery white tomentum;
antennæ black; arista much longer than the body; abdomen green, with
a black band on the base of each segment; legs black, long, slender;
anterior tibiæ dingy whitish; wings slightly cinereous; veins black;
fore branch of the præbrachial vein much curved; discal transverse vein
very slightly undulating.
_Female?_ Bright green; head blue, its fore part and the pectus with
silvery white tomentum; abdomen with black bands; anterior tibiæ
testaceous; discal transverse vein straight. Length of the body 2-1/2
lines; of the wings 5 lines.
72. PSILOPUS ÆSTIMATUS, n. s. _Mas._ Viridis, capite pectoreque
argenteis, antennis nigris basi testaceis, abdomine fasciis latis
nigris, pedibus flavescentibus, femoribus posticis apice tarsisque
nigris; alis subcinereis, halteribus testaceis.
_Male._ Bright green; head in front and pectus silvery white; antennæ
black, testaceous at the base; arista about as long as the thorax;
abdomen with a broad black band on the base of each segment; legs
yellowish, stout; tarsi black; femora paler than the tibiæ; hind femora
with black tips; wings greyish; veins black; cubital vein slightly
curved; fore branch of the præbrachial vein much curved; discal
transverse vein straight; halteres testaceous. Length of the body
2-1/2 lines; of the wings 5 lines.
73. PSILOPUS ABRUPTUS, n. s. _Mas._ Viridis, capite cyaneo, facie
pectoreque subargenteis, antennis pedibus halteribusque nigris, abdomine
cyanescente-viridi, alis cinereis.
_Male._ Bright green; head blue; its fore part and the pectus somewhat
silvery; antennæ black; arista hardly longer than the thorax; abdomen
bluish green; legs black; wings grey; veins black; fore branch of the
cubital vein forming a much rounded right angle, from whence it is
straight to its tip; discal transverse vein straight, parted by half its
length from the border, and by less than its length from the fork of
the cubital; halteres black. Length of the body 2 lines; of the wings 4
lines.