464 Records of the Indian Museum. [Vor s Wiig 
Thorax and scutellum clear shining brown, humeri, sides and 
metanotum a little lighter. 
Abdomen darker brown, with short, pale pubescence, posterior 
margin of segments with a not very distinct blackish band. 
Genitalia small, short, cylindrical, with two small terminal lamellae. 
Legs pale brownish yellow, microscopically pubescent. 
Wings pale brown; discal cell, 2nd basal cell, 5th posterior 
cell and all the wing posterior to these cells, nearly clear. No 
distinct stigma but the region along both sides of the rst longitudi- 
nal vein, blackish. Halteres dark brown. 
Described from two @ 2? in the Indian Museum, Kurseong 
(5000 ft.), 7-vil-08 (tvpe), and Darjiling (7000 ft.) , 7-vili-09, the latter 
taken by Mr. C. Paiva. 
Leptis unicolor mihi, sp. nov. 
a. Darjiling. Long. 5 mm. 
Head.—Eyes contiguous for half the distance from vertex 
to antennae. Frons dark blackish grey, ocellar triangle small, 
ocelli distinct, the vertex grooved each side of the middle, near the 
eye. Back of head grey, posterior ocular orbit with a fringe of 
delicate pale yellow hairs. Antennae yellow, tip of 3rd joint, 
with its arista, black; Ist and 2nd joints short, 3rd subconical. 
Proboscis relatively small, and much more slender than in most 
species ; yellow, as are the rather distinct elongate palpi, bearing 
black bristly hair. 
Thorax.—Uniformly light brownish yellow. In certain lights 
small quadrate grey reflections on the shoulders, and a distinct 
whitish grey broad horizontal stripe across the pleurae. 
Abdomen.—Concolorous ; both thorax and abdomen with very 
sparse short pale hairs ; belly similar. 
Legs.—Coxae and femora concolorous ; knees narrowly brown ; 
tibiae a little darker brownish yellow, becoming nearly or quite 
brown at the tips; tarsi dark brown. Legs minutely pubescent. 
Wings.—Uniformly pale yellowish grey. ‘The 2nd posterior 
cell narrow, the sides almost parallel; anterior cross-vein before 
one-fourth of the discal cell; branches of 4th longitudinal vein 
issuing from discal cell well separated; and cell widely open. 
Halteres light brownish yellow. 
Described from a single perfect # in the Indian Museum 
labelled simply ‘‘ Darjiling.’’ A very clean-looking, graceful yellow 
species. 
Chrysopilus helvolus, Meig. 
A specimen in the Indian Museum from Kurseong taken 
8-vii-08 is very close to if not identical with this European species, 
so much so that I hesitate to give it a name even as a variety. The 
femora are nearly bare and more yellowish, with the slight grey- 
ish minute pubescence of helvolus, and their tips are narrowly 
blackish. ‘The colour of the abdominal pubescence is a richer 
