430 LIST OF DIPTERA. 



each side and behind with longer white hairs and with black bristles ; 

 scutcheon, hind chest, sides of the chest, and breast mostly ferrugi- 

 nous with a hoary bloom : abdomen dark tawny, narrower than the 

 chest, and about twice its length, tapering from the base to the tip, 

 clothed with white hairs, which are longer and more numerous to- 

 wards the base, especially on the under-side ; segments above mostly 

 black, excepting the sides and the hind borders, and then the taw%iy 

 hue on the former widens as it approaches the latter, and thus the 

 black spots are nearly triangular ; first and second segments short ; 

 third and following segments long, and of nearly equal length ; tip 

 slender, black: legs ferruginous, stout, thickly clothed with short 

 white hairs and armed with black spines ; thighs black beneath ; 

 knees and claws black ; foot-cushions bright tawny : wings nearly 

 colourless, when closed reaching nearly to the tip of the abdomen ; 

 wing-ribs ferruginous ; veins piceous, ferruginous along the fore 

 borders ; poisers tawny, with piceous knobs. Length of the body 

 11 — 12 lines ; of the wings 16 — 18 lines. 



a. South Africa. Presented by Dr. A. Smith. 



Asilus Schedius, n. s. Ferrugineus, thoracis vittis quatuor nigris, 

 abdomine nigro, antennis nigris, articulo 2° pedibusque ferru- 

 gineis, femoribus subtus nigris, tarsis piceis, alis limpidis. 



Body broader and shorter than that of A. JEdithus : head 

 somewhat narrower than the chest, clothed behind, and more thickly 

 beneath with white hairs, beset along the upper hind borders of the 

 eyes with a row of bright ferruginous bristles; crown dark tawny, 

 with a few tawny hairs and a single black hair on each side ; front 

 and clypeus clothed with golden down ; front with a few slender 

 yellow bristles ; clypeus with more and stouter ferruginous and 

 black bristles, the latter on the hind part : eyes black ; fore part 

 slightly convex, its facets larger than those of the other part : lip 

 and palpi black ; the latter clothed with tawny hairs, and with 

 a very few black bristles : feelers black ; first and second joints be- 

 set with black hairs ; second joint ferruginous, about half the length 

 of the first ; third joint spindle-shaped, as long as the first ; fourth 

 and following joints like a bristle, which is a little longer than the 

 second and the third : chest ferruginous, with four broad black 

 stripes, thinly clothed with short white hairs, beset on each side 

 with black and pale ferruginous bristles ; breast and sides of 

 the chest pale ferruginous, slightly covered with a gray bloom, 

 clothed here and there with white hairs : abdomen black, tapering 

 from the base to the tip, a little narrower than the chest, and much 

 longer, but not near twice its length, clothed with white hairs ; first 

 and second segments short; third and following segments longer, 



