LIST OF DIPTERA. 333 



Group VIII. 



Dasypogon plumbeus, Fabr. St/st. Anil. 165, 8. Wied. Auss. 



Zweif. i. 413, 78. Asilus plumbeus, Fabr. Ent. Syst. iv. 382, 



27. 

 a. New Holland. 



Dasypogon Bcebius, n. s. Fuscus, capite albo, antennis ferrugineis 

 articulo 3° nigro basi ferrugineo, pedibus nigris, alis limpidis 

 venis subfusco limbatis. 



Body brown : head white, a little narrower than the chest, 

 thickly clothed behind and beneath with pale yellow hairs, covered 

 above with yellow down, beset behind the eyes with a row of black 

 bristles ; sides of the crown beset with black hairs ; front thickly 

 clothed with long pale yellow hairs ; clypeus armed with numerous 

 long yellow spines : eyes dark bronze ; fore part flat, composed of 

 larger facets than is the rest of the eye : lip and palpi black, the 

 latter and the tip of the former clothed with tawny hairs : feelers 

 ferruginous; first and second joints thickly clothed with pale yellow 

 hairs ; second joint much shorter than the first ; third joint black, 

 spindle-shaped, ferruginous at the base, as long as the first and the 

 second joints ; fourth and fifth joints extremely short : neck beset 

 with a cross row of black bristles : chest clothed with a few short 

 pale yellow hairs, beset on each side and behind with long black 

 bristles : breast covered with a gray bloom and clothed with a few 

 short pale yellow hairs : abdomen narrower than the chest and 

 nearly twice its length, tapering from the base to the tip, thinly 

 clothed with short pale yellow hairs ; first and second segments 

 short ; third and following segments long, but successively decreas- 

 ing in length to the tip, which is armed with a circlet of black 

 spines : legs black, clothed with short pale yellow hairs, and beset 

 with very long pale yellow bristles ; claws black, tawny at the base ; 

 foot-cushions pale tawny ; fore shanks unarmed : wings colourless ; 

 veins slightly bordered with brown, which hue disappears at the 

 base, at the tips, and along the hind borders ; wing-ribs piceous ; 

 veins black ; poisers tawny. Length of the body 8^ lines ; of the 

 wings 12 lines. 



a. Port Essington. From Mr. Gould's collection. 



