332 LIST OF DIPTERA. 



gray towards the tips and along the hind borders ; disks of the are- 

 olets in the middle of the wings also gray ; wing-ribs ferruginous ; 

 veins black, piceous towards the base, ferruginous along the fore 

 border ; poisers tawny. Length of the body 1\ lines ; of the wings 

 11 lines. 



Dasypogon Winthemi ? Wied. Dipt. Exot. i. 223, 17. Auss. Zweif. 



i. 387, 32. 

 a. South America ? Presented by the Entomological Club. 



Dasypogon Eburnus, u. s. Fulvus, thoracis vittis tribus nigro-fus- 

 cis i antennis fulvis apice ferrugineis, abdomine pedibusque fer- 

 rugineis, alls subfulvis. 



Head piceous, as broad as the chest, covered with pale yellow 

 down, clothed behind and on the sides with white hairs, beset behind 

 the eyes with a few black bristles ; clypeus armed with seven or 

 eight long white bristles ; eyes bronze ; fore part nearly flat, its fa- 

 cets rather larger than those of the other part : lip black, shining, 

 ferruginous, and clothed with very short pale yellow hairs at the 

 tip ; palpi black, clothed with black hairs : first and second joints 

 of the feelers tawny, beset with some stout black hairs, — these are 

 mostly on the second joint, which is slightly club-shaped and rather 

 longer than the first ; third joint ferruginous, spine-shaped, as long 

 as the first and the second joints : chest tawny, thickly clothed with 

 black hairs, and beset on each side with some very long black bris- 

 tles, adorned with three blackish brown stripes on the disk ; middle 

 stripe including a paler stripe ; side stripes short, interrupted by 

 two oblique yellow bands : breast tawny : abdomen ferruginous, 

 thinly clothed with short tawny hairs, narrower than the chest and 

 nearly twice its length, almost linear till near the tip, which is shin- 

 ing ; first and second segments short ; third and following segments 

 long, but successively decreasing in length : legs ferruginous, clothed 

 with very short tawny hairs ; hips dark tawny ; shanks beset with 

 very long black bristles ; feet armed with short black bristles ; claws 

 black ; foot-cushions tawny ; tips of fore shanks armed with a curved 

 black tooth, corresponding with some little black tubercles at the 

 base of the feet : wings slightly tawny ; wing-ribs ferruginous ; 

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

 the body 5 lines; of the wings 9 lines. 



a. Para. Presented by Gordon Graham, Esq. 



