308 LIST OF DIPTERA. 



Group II. 



Dasypogon Serranus, n. s., mas. et fern. Fuscus, capite fulvo, pec- 

 tore cinereo, abdomine nigro, antennis pedibusque nigris, fern. 

 pedibus piceis, alis fuscis basi et ad costam ferrugineis. 



Head hardly as broad as the chest, very thickly clothed behind 

 and beneath with long bright tawny hairs; crown covered with 

 close dull tawny down and beset with black hairs; front co- 

 vered with thick, shining, pale yellow down, and crossed by two 

 ridges near the clypeus, which is armed with numerous long pale 

 yellow bristles, and has also some black and yellow hairs : eyes dark 

 bronze colour ; the fore part flat, and composed of large facets, 

 which diminish in size as they approach the convex part, and blend 

 with the small facets of the latter : lip rather long, stout, black ; a 

 cluster of dark tawny hairs on its tip ; palpi black, thickly clothed 

 with black hairs, and also at their tips with black bristles : feelers 

 black ; first and second joints of equal length, clothed with black 

 hairs ; third joint spindle-shaped, much longer than the first and the 

 second ; chest brown, furnished with some black hairs and beset 

 with black bristles on each side and in front of the scutcheon, which 

 also has some bristles : breast black, covered with a gray bloom, and 

 thinly clothed with yellow hairs: abdomen black, clothed with 

 short black hairs, decreasing in breadth from the base to the tip, 

 convex, nearly cylindrical, narrower than the chest, and full twice 

 its length, slightly tapering from the base to the tip ; first and second 

 segments short ; third segment long ; the following segments suc- 

 cessively decreasing in length : legs of the male black, clothed with 

 black hairs and bristles ; claws black ; foot-cushions piceous ; fore 

 legs unarmed : wings dark brown, ferruginous at the base and along 

 the fore borders ; wing-ribs and veins ferruginous ; poisers piceous, 

 tawny towards the base. Fern. — Tip of the abdomen armed with a 

 circlet of black spines : legs piceous. Length of the body 10 lines ; 

 of the wings 16 lines. 



a. Cape. Presented by the Entomological Club. 



b. ? From Mr. Children's collection. 



Dasypogon capensis, Wied. Dipt. Exot. i. 201, 31. Auss. Zweif. i. 



369, 4. Asilus capensis, Fabr. Syst. Anil. 154, 4. 

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



Group III. 



Dasypogon lacteipennis, Wied. Auss. Zweif. i. 371, 8. 



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



b. South Africa. Presented by Dr. Burchell. 



c. Cape. Presented by E. W. Townsend, Esq. 



