LIST OF DIPTERA. 443 



veins piceous, black towards the tips ; poisers tawny. Length of the 

 body 8 lines ; of the wings 14 lines. 



a. ? 



Asilus brevipennis? Wied. Auss. Zweif. i. 431, 10. 

 a. Florida. Presented by E. Doubleday, Esq. 



Asilus femoralis, Wied. Auss. Zweif. i. 466, 61. 

 a. Egypt. Presented by Sir Gardner Wilkinson. 



Asilus Antiphus, n. s., mas. Piceus, thorace fulvo vittis duabus 

 nigris, abdomine antennis femoribusque nigris, pedibus fulvis, 

 alis limpidis apicibus marginibusque posticis cinereo variis. 



Body piceous: head narrower than the chest, thinly clothed 

 with yellow hairs, beset behind the eyes with black bristles ; tubercle 

 of the eyelets covered with black hairs ; clypeus thickly beset with 

 black bristles and with more and longer yellow bristles : eyes dark 

 green ; fore part nearly flat, not very distinct from the other part, 

 but with rather larger facets : lip black, shining, clothed at the base 

 with long, and at the tip with short yellow hairs ; palpi black, and 

 beset with black bristles : feelers black ; first joint thickly clothed 

 with black hairs ; second joint rather more than half the length of 

 the first ; third joint spindle-shaped, as long as the first and the se- 

 cond; fourth and fifth joints like a bristle, nearly as long as the 

 third : chest dark tawny, with two black stripes very near together, 

 clothed with short black hairs, and beset on each side with black 

 bristles : breast piceous, and clothed with yellow hairs : abdomen 

 black, covered with dark tawny bloom, clothed with yellow hairs, 

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

 about twice its length ; segments from the third to the sixth suc- 

 cessively and slightly decreasing in length ; seventh segment much 

 shorter than the sixth ; eighth segment still shorter ; ninth segment 

 with the sexual parts shining : legs tawny, stout, clothed with tawny 

 hairs and armed with black bristles ; hips and thighs black, tips of 

 the latter tawny ; tips of the feet piceous ; claws black, tawny at 

 the base ; foot-cushions tawny : wings colourless ; disks of the areo- 

 lets at the tips and along the hind borders gray ; wing-ribs ferrugi- 

 nous ; veins black, piceous towards the base, which is ferruginous ; 

 poisers tawny. Length of the body 8 — 10 lines ; of the wings 

 14—16 lines. 



a. Brazil. 



