448 LIST OF DIPTEEA. 



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

 with long black hairs; second joint shorter than the first; third 

 joint long, spindle-shaped ; bristle shorter (?) than the third joint : 

 chest gray, clothed with short yellowish white hairs, and beset on 

 each side with long black and pale yellow bristles : breast hoary : 

 abdomen hoary, clothed with short white hairs, which form a tuft 

 on each side at the base, tapering from the base to the tip, hardly 

 twice the length of the chest; segments from the third successively 

 decreasing in length : legs gray, clothed with white hairs, and beset 

 with pale yellow spines, which are most frequent on the shanks and 

 on the feet ; shanks ferruginous ; feet piceous ; claws black, ferru- 

 ginous at the base ; foot-cushions pale tawny : wings colourless ; 

 wing-ribs piceous ; veins black ; fore border veins ferruginous ; 

 poisers tawny. Length of the body 6 lines ; of the wings 10 lines. 



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



Asilus Noas, n. s., fern. Cinereo-fulvus. capite albo, pectore cinereo, 

 antennis nigris, pedibus cinereis, tibiis ferrugineis, alls lim- 

 pidis. 



Body grayish tawny: head white, very little narrower than 

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

 behind the eyes with a row of tawny bristles ; crown covered with 

 a few black hairs : clypeus with a very thick tuft of long pale yel- 

 low hairs : eyes brassy ; fore part flat, composed of large facets : 

 lip black, clothed at the tip with short tawny hairs ; palpi black, 

 beset with long black hairs : first and second joints of the feelers 

 black, clothed with black hairs ; second joint club-shaped, shorter 

 than the first: chest clothed with short white hairs and beset 

 on each side with a few tawny bristles : breast gray, almost hair- 

 less : abdomen a little narrower than the chest and nearly twice 

 its length, tapering from the base to the tip, clothed with short 

 white hairs and beset with one or two white bristles on the sides of 

 the hind border of each segment; first and second segments short ; 

 third and following segments long, but successively decreasing in 

 length : legs gray, clothed with white hairs and beset with pale yel- 

 low spines; shanks dark ferruginous; claws black; foot-cushions 

 tawny : wings colourless ; wing-ribs dark ferruginous ; veins black, 

 ferruginous along the fore borders ; poisers tawny. Length of the 

 body 6 J lines ; of the wings 11 lines. 



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



