DIPTERA. 201 
clothed with black hairs: abdomen obconical, much longer than the chest, 
adorned on each side with tufts of black hairs and near the tip with a tuft 
of white hairs: legs black: wings whitish; wing-ribs pitchy; veins black, 
tawny towards the base; poisers black. Length of the body 4 lines; of 
the wings 8 lines. 
Group L.—C. D. B. M. 284. 
Characters of Group A. The little cross-vein somewhat beyond one- 
third of the length of the discoidal areolet. 
Bompsy ius soctvus, Fem. 
Niger, fulvo-hirtus, capite subtus albo-hirto, scutello rufo, abdominis late- 
ribus apiceque nigro-setosis, pedibus fulvis, alis subcinereis basi 
fulvis. 
Black, very thickly clothed with pale tawny hairs: head mostly 
clothed above with black hairs, clothed beneath with white hairs: mouth 
rather shorter than the body : seutcheon red : sides and tip of the abdomen 
beset with black bristles: legs tawny; feet pitchy towards the tips: wings 
pale yray, tawny at the base; wing-ribs tawny ; veins black, tawny at the 
base and along the fore border; poisers tawny. Length of the body 44—5 
lines; of the wings 11—12 lines. 
East Indies. 
Group M.—C. D. B. M. 286. 
Characters of Group A. Head very broad. The little cross-vein at 
one-third of the length of the discoidal areolet. 
Bomsytius pistinctus, Fem. 
Niger, fulvo-hirtus, scutello thoracisque postici lateribus fulvis, antennis 
nigris basi piceis, pedibus fulvis, alis subcinereis ad costam fulvis. 
Black, thickly clothed with bright tawny hairs above and with yellowish 
white hairs beneath: head nearly as broad as the chest: sucker rather thick 
towards the tip, hardly half the length of the chest: first and second joints 
of the feelers pitchy, clothed with tawny hairs: scutcheon and sides of the 
