DIPTERA. 9-\ 



of the borders of the veins ; wing-ribs and veins !)lack ; poisers yellow. 

 Length of the body 7 lines ; of the wings 13 lines. 



Dasypogon videns, Feni. 



Piceus,fiavescens, thorace vittis dunbus Jlacis ornato, abdominc ferruyhwo 

 basi piceo, ventre inaculis piceis, anlennis ferruc/ineis basi fulvis, pe- 

 dibus ferriigineis tibiis basi fulvis, alis sublimpidis ad costam sub- 

 fulvis. 



Head adorned with a whitish yellow covering, beset behind the eyes 

 with a row of black bristles ; crown pitchy ; epistoma beset with two pale 

 yellow bristles and with a few pale yellow hairs : sucker and palpi black ; 

 palpi beset with black bristles : eyes bronzed ; fore part flat, composed of 

 large facets : feelers pale tawny ; first and second joints beset with short 

 black bristles ; third ferruginous, pale tawny at the base, spindle-shaped, 

 broader and a little longer than the first and second joints ; chest and 

 breast pitch?/, tinged with pale buff ; the former darker than the latter, and 

 adorned with a yellow stripe along each side : abdomen ferruginous, pitclii/ 

 here and there beneath and at the base, a little narrower than the chest and 

 about twice its length, linear from the base to the hind border of the third 

 segment, spindle-shaped from thence to the tip : legs ferruginous, clothed 

 with short ferruginous hairs, armed with ferruginous spines ; shanks tawny 

 towards the base ; claws black, ferruginous at the base ; foot-cushions 

 tawny : wings nearly colourless, with a slight tawny tinge beneath the 

 fore border ; wing-ribs tawny ; veins pitchy, tawny at the base and along 

 the fore border ; poisers tawny. Length of the body 6 lines ; of the wings 

 12 lines. 



Africa. 



Dasypogon tkistis, Mas. 



Ater, abdominc nigrn-cincreo, antennis nigris basi piceis, pedibus nigris, 

 alis nigro-purpureis. 



Bodi/ deep black : head clothed with black hairs, adorned with a hoary 

 covering, beset with black bristles, which form a fringe behind the eyes : 

 face and epistoma thickly armed with black spines : eyes black ; fore part 

 nearly flat, its facets a little larger than those elsewhere : sucker black, 



O 



