LIST OF DIPTERA. 437 



clothed at the tip with short tawny hairs ; palpi Mack, beset with 

 black hairs and bristles: first and second joints of the feelers beset 

 with short stout black hairs ; first joint pale yellow : second joint 

 tawny, about half the length of the first ; third joint piceous, taper- 

 ing from near the base to the tip, tawny at the base, shorter than 

 the first ; bristle black, much more thau twice the length of the first 

 joint : fore-chest pale tawny, beset with yellow bristles : chest pale 

 brown, thinly clothed with black hairs, beset on each side and 

 behind with some black bristles, adorned with three pale tawny 

 stripes, and on each side with three oblique pale tawny bands, the 

 latter connect the side stripes with the sides of the chest, which are 

 also pale tawny ; scutcheon pale tawny ; hind chest and breast 

 whitish : abdomen yellowish tawny, narrower than the chest, and 

 more than twice its length, tapering from the base to the tip, clothed 

 with tawny hairs ; each segment ferruginous towards the hind bor- 

 der, which is piceous ; tip black, and clothed with black hairs ; un 

 der-side paler, and with a whitish bloom, especially towards the 

 base ; first and second segments very short ; second segment arched ; 

 third and following segments long, successively decreasing in length ; 

 I third, fourth, and fifth segments beset on each side of the hind bor- 

 der with some yellow bristles, which successively decrease in num- 

 j ber ; third segment crossed by a furrow and by some rows of punc- 

 i tures near the fore border : legs tawny, clothed with black and taw- 

 1 ny hairs, armed with some black spines, and with a few white 

 [ bristles; hips whitish, clothed with long white hairs ; knees black ; 

 I claws black, tawny towards the base ; foot-cushions tawny : wings 

 tawny ; wing-ribs piceous ; veins black, piceous towards the base ; 

 1 poisers yellow, with ferruginous knobs. Length of the body 9j 

 lines ; of the wings 16 lines. 



i a. Brazil. 



In a fly of this species there is a very short fork near the base 

 ! of the vein between the submarginal areolets in one wing. 



! Asilus chrysitis, Hoffmansegg, Meig. Dipt. ii. 310, 5. 



| a. Marseilles. 



I b. Albania. Presented by W. W. Saunders, Esq. 



1 c. ? 



Asilus Tucca, n. s., fern. Niger, aureo pubescens, abdominis macu- 

 lis aureis, antennis nigris, pedibus nigro variis, femoribus rufis, 

 tibiis fidvis, alis limpidis, apicibus marginibusque posticis ci- 

 nereis. 



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

 golden down, clothed behind and beneath with hoary hairs, beset 



2q2 



