jQi^.] E. Brunetti : New Diplera from the E. Himalayas. 265 



iV.S.— There is nothing to materially prevent this species 

 coming in Ampsalis. The head is barely as wide as the thorax at 

 its widest part, and Walker says the scutellum is armed with two 

 oblique ascending spines, but does not mention their great length. 

 The only apparent discrepancy is that he says the flagellum is 

 about twice the length of the scape, whereas in the present species 

 it is fully three times as long, but this difference would not be 

 generic. 



Odontomyia rufoabdominalis, mihi, sp. nov. 

 (f Darjiling, 1000—3000 ft. Long. 17 mm. 



Head black, a little shining. Eyes absolutely contiguous for 

 a short space, leaving a very elongate narrow vertical triangle. 

 Vertex considerably prominent, with a few black hairs; ocelli pale 

 yellowish. Face but little prominent, with short black and grey 

 hairs. Antennae black, ist and 2nd joints normal, ist black, 2nd 

 dull brownish (3rd missing). Two small tufts of grey hairs 

 immediately above antennae, and a trace of grey hairs along the 

 sides of the face. 



Thorax black, slightly shining, dorsum and sides with mode- 

 rately thick, not long, black and grey hairs, set in minute black 

 sockets which give the dorsum a granulated appearance, often 

 two or three hairs emerging from the same socket. Small 

 patches or bunches of grey hairs occur around the base of the 

 wing and on the pleurae. Scutellum similarly clothed to the 

 thorax, with a fringe of rather ragged grey hair on posterior border 

 and a short blunt spine at each hind corner. 



Abdomen. — Ground colour of ist and 2nd segments and major 

 portion of 3rd, 4th and 5th black, a little shining, the sides of the 

 dorsum, nearly from the shoulders to the extreme tip, and the 

 hind margins of the 3rd, 4th and 5th and the bulk of the 6th 

 segment all bright reddish-orange, covered with similarly coloured 

 pubescence. The black parts are clothed with sparse black pubes- 

 cence, a small patch of greyish hairs on hind corners of 2nd 

 segment, and some yellow hairs extend along the narrow red side 

 edges of the abdomen, nearly or quite to the shoulders. Belly 

 dull reddish-orange, becoming brighter towards tip, the central 

 part of most of the segments more or less black. Pubescence 

 of belly wholly reddish-orange, short and depressed. 



Legs black, with a little short greyish hair; under and inner 

 sides of tibiae towards tips and about the apical half of the 

 anterior and the whole of the hind tarsi (the latter lengthened) 

 orange yellow, with short gold pubescence. 



Wings yellowish-grey stigmatic region black ; the major 

 portion of the middle of the wing from anterior margin nearly 

 to posterior border darker brown, the colour fading away gradu- 

 ally. Halteres buff ; thoracic squamae milk-white with similarly 

 coloured soft hair. 



