LIST OF DIPTERA. 389 



bristles ; hips and thighs piceous ; thighs dark ferruginous ; knees 

 black ; shanks yellow, with black tips ; feet black, broad, clothed at 

 the tips with hoary hairs ; claws black ; foot-cushions dark tawny ; 

 fore thighs and middle thighs thicker than the hind thighs ; fore 

 shanks and middle shanks clothed with yellow hairs : wings tawny, 

 dark brown at the base and along the fore border for half the length ; 

 wing-ribs and veins black ; poisers piceous, with tawny knobs. 

 Length of the body 8 lines ; of the wings 20 lines. 



a ? Presented by the Entomological Club. 



Asilus ater. Mallophora atra, Macq. Hist. Nat. Dipt, i. 30, 2. 



a. Para. Presented by Gordon Graham, Esq. 



b. ? 



Group HI. 



Asilus nigritarsis, Wied. Auss. Ziveif. i. 479, 84. Dasypogon ni- 

 gritarsis, Fabr. Syst. Anil. 168, 18. Mallophora nigritarsis, 

 Macq. Dipt. Exot. i. 2, 86, 4. 



a. Demerara. Presented by J. S. Bowerbank, Esq. 



b. Brazil. Fronf Mr. Mornay's collection. 



c. ? 



Asilus Copillus, n. s., mas. et fern. Fulvus, subtus canus, abdominis 

 maculis nigris, antennis rufis, pedibus fulvis, alis subfulvis. 



Head as broad as the chest, covered with golden down, clothed 

 on the crown and behind with tawny hairs and beneath with longer 

 yellow hairs ; front covered with a few yellow hairs ; clypeus promi- 

 nent, thickly beset with yellow bristles : eyes green and purple ; fore 

 part Hat, very distinct from the other part, and composed of much 

 larger facets : lip black, stout, clothed at the tip with short tawny 

 hairs ; palpi ferruginous, clothed with tawny hairs : first and second 

 joints of the feelers red, covered with a few short black hairs ; second 

 joint about half the length of the first : chest covered with tawny 

 down, thinly clothed with very short black hairs, beset on each side 

 and behind with black bristles ; a large spot on each side of the 

 hind chest ; breast hoary, clothed with very long pale yellow hairs : 

 abdomen tawny, much narrower than the chest and rather less than 

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

 with long yellow hairs, hoary beneath and on each side towards the 

 base ; a large black spot on each segment occupying most of its 

 breadth and one-third of its length from the base ; first and second 

 segments very short ; second segment arched, adorned with a thick 

 tuft of tawny hairs on each side ; third and following segments 



2 M 2 



