BY FREDERICK A. A. SKUSE. 
1731 
196. CuLEX viGiLAx, sp.n. 
— Length of antennae 0'090 inch ... 2'27 millimetres. 
Expanse of wings 0'l70x0‘050 ... 4‘31 x L27 
Size of body 0-200 x 0-045 ... 5-08x 1-13 
Antennae dark brown, | the length of the proboscis ; joints of 
the scapus more or less ochraceous-brown or ochraceous. Head 
covered with dark brown scales, indistinctly mottled with yellow 
scales. Proboscis about seven times the length of the palpi, 
very dark brown or black, ochreons-yellow beneath from just be- 
yond the base to a little beyond the middle. Palpi dark brown, the 
last joint with white scales at the apex. Thorax very deep brown 
or black, densely covered with deep brown or black scales, mottled 
with small patches of golden-yellow scales ; pleurse very deep 
brown, spotted with a few small patches of white scales ; scutellum 
deep brown, sometimes tinged with testaceous, with golden-yellow 
scales and setse ; metanotum deep brown, nearly black, more 
or less testaceous at the sides. Halteres entirely ochre-yellow. 
Abdomen scarcely twice the length of the thorax, covered with 
violet-black scales, each segment except the first bordered anteriorly 
with a narrow band of very pale yellowish or whitish scales, the 
first segment set with numerous golden-yellow setee and sprinkled 
with white scales ; all segments with a small patch of pure white 
scales laterally below the extremities of the anterior bands ; venter 
covered with very pale yellowish or whitish scales ; lamelhe of the 
ovipositor deep brown. Coxa) light brown, with white scales. 
Femora violet- black above and at the apex, sprinkled with yellowish 
or whitish, beneath yellowish or whitisli, nearly wholly vdolet-black 
in the fore-legs ; genua bright golden-yellow. Tibim violet-black, 
si)i'inkled with yellowish scales. Tarsi violet-black, each joint 
with a narrow ring of white at the ba.se, rather indistinct on the 
last two joints of the fore- and intermediate-legs. In the hind-legs 
the metatarsus rather more than ^ the length of the tibia). Wings 
longer than the abdomen, hyaline, with a pale yellowish tint 
anteriorly, veins covered with slender brown scales, cilia grey ; 
rather brilliant rellections. Auxiliary vein joining the costa a little 
