LIST OF DIPTERA. 307 



narrower than the chest, and nearly twice its length, tapering from 

 the base to the tip, where it is clothed with some short tawny hairs, 

 and armed with a circlet of short black spines ; a pale tawny stripe 

 on each side of the third, fourth, and fifth segments ; middle of the 

 third segment crossed by some rows of little punctures ; first and 

 second segments short ; third and following segments long, but 

 successively decreasing in length : legs black, clothed with very 

 short black hairs and armed with black spines ; thighs and shanks 

 crossed by numerous little furrows ; shanks and feet piceous or very 

 dark red at the base ; claws black ; foot-cushions pale brown ; fore 

 shanks unarmed : wings dark brown ; wing-ribs piceous ; veins 

 black ; poisers dark tawny. Length of the body 12 lines ; of the 

 wings 18 lines. 



a. ? 



Dasypogon Balbillus, n. s. Niger, abdomine apice rufo, antennis 

 pedibusque nigris, alis subfulvis. 



Body dull black : head hardly as broad as the chest, thinly 

 clothed beneath with black hairs ; clypeus armed with eight very 

 long and some shorter pale yellow bristles : eyelets piceous : eyes 

 black, convex, flat in the front, where the facets are large, but these 

 as usual decrease in size as they diverge towards the outer part, which 

 is composed of very small facets: lip black, rather long; its tip 

 clothed with short yellow hairs ; palpi also rather long, clothed with 

 black hairs and beset at the tips with long piceous bristles : first 

 and second joints of the feelers black, beset with black hairs ; 

 second joint shorter than the first ; rims of the eyes beset with 

 black bristles above and behind : chest and breast black, somewhat 

 piceous on the borders of the sutures ; sides of the chest beset with 

 black bristles: abdomen cylindrical, much more than twice the 

 length of the chest, decreasing in breadth from the base to the tip, 

 thinly clothed with very short black hairs : first segment very short ; 

 second segment rather short, somewhat gibbous ; third segment 

 long ; the following segments to the tip successively decreasing in 

 length ; sixth and following segments red ; tip armed with black 

 spines : legs black, clothed with tawny hairs ; shanks and feet be- 

 set with black spines, these are most frequent on the feet, which 

 are also more hairy than the shanks ; claws black ; foot-cushions 

 tawny ; fore legs not armed : wings pale tawny ; wing-ribs and 

 veins ferruginous ; poisers tawny. Length of the body 15 lines ; of 

 the wings 25 lines. 



a. Nepaul. From the Hardwicke bequest. 



2 E 3 



