LIST OF D1PTERA. 397 



Asilus Dovso, n. s., fern. Ferrugineus, thoracis vittis tribus nigris, 

 abdomine nigro, segmentorum marginibus posticis ferrugineis, 

 antennis nigris, articulo 2° ferrugineo, pedibus rufis, alis Urn- 

 pidis. 



Body ferruginous, broad, short : head narrower than the chest, 

 clothed behind and beneath with white hairs, beset behind the eyes 

 with a row of ferruginous bristles ; front and clypeus adorned with 

 golden down ; front clothed with long yellow hairs ; clypeus beset 

 with ferruginous and black bristles : eyes dark bronze ; fore part 

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

 black ; palpi black, clothed with tawny hairs, and beset with some 

 black bristles: feelers black; first and second joints clothed with 

 tawny hairs ; second joint ferruginous, half the length of the first ; 

 third joint spindle-shaped, as long as the first ; bristle longer than 

 the third joint : chest thick, thinly clothed with tawny hairs, beset 

 on each side and behind with black bristles, adorned with three 

 broad black stripes ; the hind part is also armed with ferruginous 

 bristles : breast covered with a gray bloom : abdomen black, longer 

 and much narrower than the chest, tapering from the base to the 

 tip, thinly clothed with short pale yellow hairs ; hind borders of the 

 segments ferruginous ; first and second segments very short ; third 

 and following segments long, but successively decreasing in length : 

 legs red, thinly clothed with short pale yellow hairs, armed with 

 black spines ; claws black ; foot-cushions dull tawny : wings colour- 

 less ; wing- ribs ferruginous ; veins piceous ; poisers tawny. Length 

 of the body 11 lines ; of the wings 18 lines. 



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



Group VI. 



Asilus Antiphon, n. s., fem. Fulvo-cinereus, capite albo, thoracis 

 lateribus scutello pectoreque canis, abdomine cinereo apice albo 

 subtus cano, antennis pedibusque nigris, alis subfuscis. 



Head grayish tawny, narrower than the chest, white, and 

 clothed with white hairs behind and beneath, furnished with a few 

 black hairs on the crown, beset with black bristles behind the eyes ; 

 front and clypeus adorned with silky yellowish white down, the for- 

 mer beset with a few long white hairs, the latter armed with some 

 long pale yellow bristles : eyes bronze ; fore part flat, distinct from 

 the other part, and composed of large facets : lip black, shining, 

 clothed at the base with long, and at the tip with short pale yellow 

 hairs ; tongue ferruginous : first and second joints of the feelers 



