142 



antennae, proboscis, and palpi bright tawny brown ; upper two- 

 thirds of eyes rich brown, with large facets ; lower third black, 

 with very much smaller facets. Thorax and scutellum bright 

 tawny brown, with scattered golden-yellow hairs, and with black 

 hairs on the scutellum. Abdomen concolorous ; bases of segments 

 (except first and second) narrowly brown ; the whole abdomen 

 covered irregularly with black hairs, including a row on the 

 posterior border of every segment ; venter concolorous, with black 

 hairs. Legs (fore pair, except coxa3, missing) uniformly bright 

 tawny brown, practically bare; tarsi darker brown. Wings pale 

 gre\ , almost clear; stigma distinct, but with ill-defined edges; a 

 very light brownish band extending from it posteriorly, partly 

 across the wing ; veins tawny brown ; halteres tawny. 



Length, 5 mm. 



Described from one d" in the Indian Museum from Margherita, 

 Assam. 



108. Chrysopilus stigma, Srun. (PI. II, fig. 21.) 



Chrysopilus stigma, Brunetti, Kec. Ind. Mus. ii, p. 43:?, pi. xii, 

 fig. 14 (1909). 



J. Head with vertex reduced to a very small elevated black 

 triangle, on the angles of which are the three prominent ocelli ; 

 eyes dark reddish brown, contiguous for a considerable distance, 

 the facets much larger lor a considerable space in front above 

 the- antennae, with a greenish-black tinge and (in certain 

 lights) a narrow, bright green, horizontal stripe across the 

 middle; face much withdrawn between the eyes, light grey above 

 and below antennae ; antennae yellow, 3rd joint blackish, with 

 some hairs and a rather long arista, which is microscopically 

 pubescent; proboscis cinereous grey, lower part tawnv yellow; 

 the palpi tawny yellow, with tips broadly black and hairy; a 

 fringe of light, hairs around the eyes ; back of head light grey. 

 Thorax greenish, with a dorsal narrow brown stripe in front and 

 two small indistinct brown spots in middle of dorsum ; sparse 

 yellow hairs over the whole dorsum ; sides of thorax cinereous 

 grey, yellowish at base of wing; scutellum grey; centre with a 

 slight greenish tinge. Abdomen yellowish, 1st segment blackish 

 grey, segments 2, 3, and 4 with a blackish, rather wide posterior 

 border and dorsal stripe, remainder of segments blackish ; venter 

 yellow, tip blackish ; a few yellow hairs scattered over dorsum of 

 abdomen, black hairs at tip; genitalia bi-lobed, tawny yellow, 

 with stiff black hairs. Legs with coxre and femora pale yellow, 

 with a few yellow hairs near the tip on underside of latter, and 

 with generally distributed microscopic black hairs ; tibiae blacki^-h 

 yellow, with microscopic black hairs and some stronger bristles; 

 tarsi similar, tips black; middle tarsi with two long spines at tip. 

 Wings quite clear; stigma distinct, dark brown, but without 

 well-defined limits; traces of a pale yellowish stripe towards tip 

 of wing. Inner cross-vein placed before one-fifth of the discal 



