LIST OF DIPTERA. 409 



chest brown, dark tawny on each side, and indistinctly striped with 

 the same colour: scutcheon beset with some tawny bristles ; breast 

 tinged with gray, partly clothed with tawny hairs : abdomen tawny, 

 red towards the tip, which is dark red, tapering from the base 

 to half its length, linear thence to the tip, narrower than the chest, 

 and nearly twice its length, bronze on the disk towards the base ; 

 segments from the second to the fifth thickly clothed with yellow 

 hairs on each side. 



Group VIII. Protacanthus, Macquart. 



Asilus rufiventris. Protacanthus rufiventris, Macq. Dipt. Exot. i. 



2, 123, 5, pi. 10, /. 2. 

 a. Honduras. From Mr. Miller's collection. 



Asilus Coprates, n. s., mas. Niger, thorace cinereo vittis quinque 

 fuscis, pectore cano, abdomine mfo pilis flavis vestito, pedibus 

 rufis t alis limpidis apice fulvis. 



Body black : head nearly as broad as the chest, covered with 

 pale yellow down, clothed behind the head with yellow hairs and 

 black bristles, more thickly clothed beneath with long whitish hairs ; 

 crown beset with some yellow hairs ; front and clypeus ferruginous ; 

 front clothed with long pale yellow hairs ; clypeus armed with long 

 pale bristles : eyes large, black ; fore part slightly convex, its facets 

 rather larger than those of the other part : lip black, clothed at the 

 tip with short tawny hairs : palpi black, clothed with long black 

 bristles: chest gray, clothed with very short black hairs, beset 

 on each side and behind with black bristles, adorned with five pale 

 indistinct brown stripes ; scutcheon beset with yellow and black 

 bristles : breast hoary, partly clothed with pale yellow hairs : abdo- 

 men red, tapering from the base to the tip, a little narrower than 

 the chest and nearly twice its length, clothed with yellow hairs, 

 which are long and thick towards the base, but short and thin else- 

 where ; first and second segments black, very short ; second seg- 

 ment arched, with a tuft of yellow bristles on each side ; third and 

 following segments long, but successively decreasing in length; 

 sexual parts red, of moderate size : legs dark red, clothed with short 

 black hairs armed with black spines ; hips gray, clothed with whit- 

 ish hairs ; shanks darker towards the tip ; knees and claws black ; 

 foot-cushions tawny ; shanks towards the tips and feet at the base 

 covered beneath with tawny down : wings colourless, tawny towards 



