ATEICHOPS. 1 15 



'75. Atrichops lanopyga, Brun. (PI. II, fig. 8.) 



Atherix lanopyga, Brimetti, Rec. Iud. Mus. ii, p. 420, pi. xii, fig. 3 

 (1909). 



§ . Head with rather more than the upper half of frons velvet- 

 black, remainder of frons, the vertex, and face below antennae 

 blackish, with bluish grey reflections; antennae with two basal 

 joints brown (third missing) ; eye-facets of uniform size ; proboscis 

 and palpi blackish, the latter pubescent above and below ; occiput 

 blackish grey, with a continuous fringe of short grey hair. 

 Thorax black, with whitish grey reflections at the sides and on 

 the humeri ; scutellum black, with black hairs, posterior border 

 brown. Abdomen mainly black ; 1st segment dark brown, the, 

 colour extending as a wide dorsal stripe across the 2nd ; sides of 

 first two segments occupied by a large, light yellow, translucid 

 spot ; 3rd segment velvet-black, with a bicoloured spot at the 

 sides of the posterior border, the anterior half of this spot being 

 orange and the posterior half grey, the orange-colour extending 

 along the sides of the abdomen in a streak, until it reaches the 

 large translucent side-spots in front of it; remaining segments 

 black, whitish grey posteriorly, the sides of 6fch and 7th being 

 .light orange-brown ; anal process black; dorsum of abdomen with 

 yellowish hair, which- at the tip becomes brown ; venter yellow, 

 with soft yellow hair, the middle segments with some irregular 

 black marks. Legs : coxae brown, with bluish white shimmer, and 

 silky white hair ; femora yellow, base of fore pair and basal half 

 of middle and hind pairs light brown ; tibiae brownish yellow, 

 hind pair darker ; tarsi brownish black ; the femora have a little 

 pale yellow hair, which is brown on the tibiae, bright golden brown 

 on hind pair, and black on the tarsi. Wings pale grey, with a 

 faint brown streak from the elongated brown stigma reaching 

 nearly to the posterior border ; a small elongated clear spot in the 

 middle of the discal and of the fifth posterior cells : discal cell 

 3| times as loug as broad; halteres yellow, knobs black; teguloe 

 pale yellow, transparent. 



Length, 10 mm. 



Described from one c? in good condition in the Indian Museum 

 collection from Sadiya, Assam. 



76. Atrichops ?limbata, O.-S. (PL II, fig. 10.) 



Atherix limbata, Osten-Sacken, Berl. ent. Zeits. xxvi, p. 100 (1882) ; 

 Brunetti, Bee. Ind. Mus. ii, p. 418, pi. xii, fig. 4 (1909). 



2 . Head : vertex cinereous grey, with a few blackish hairs, 

 upper halt' of frons dull coal-black, lower part bluish grey with 

 (seen from above) a central small black spot, lower part of face 

 blackish grey, proboscis brown ; antennae blackish grey with a 

 few hairs at base, 3rd joint tawny, arista long ; eyes blackish ; 

 -occiput bluish grey, with a fringe of light hairs, which are longest 



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