416 LIST OF DIPTERA. 



second joints of the feelers black, beset with short black bristles ; se- 

 cond joint nearly half the length of the first ; third joint spindle- 

 shaped, piceous, a little shorter than the first; bristle twice the 

 length of the third joint : fore chest dark tawny, clothed with long 

 whitish hairs, armed with a row of black bristles : chest dark brown, 

 clothed with very short black hairs, beset on each side, and especially 

 behind, with black bristles, clothed also on the hind part with some 

 whitish hairs, adorned with three narrow pale brown stripes ; sides 

 pale brown : hind chest and breast tinged with gray : abdomen 

 brown, narrower than the chest, and much more than twice its 

 length, tapering from the base to the tip, ferruginous towards the 

 tip, clothed with short tawny hairs, but towards the base with longer 

 and paler hairs ; first and second segments very short ; second seg- 

 ment arched, beset like the third with black bristles on each side ; 

 third and following segments long: legs dark red, clothed with 

 short black hairs, armed with black spines ; hips clothed with long 

 pale yellow hairs ; thighs piceous ; claws black ; foot-cushions taw- 

 ny : wings brownish tawny ; wing-ribs ferruginous ; veins piceous ; 

 poisers dark tawny. Fern. — Clypeus armed with several black bris- 

 tles : stripes and sides of the chest ferruginous : abdomen black, 

 shining, and cylindrical towards the tip, which is armed with 

 a circlet of short black spines. Length of the body 14 — 15 lines ; of 

 the wings 22 lines. 



Asilus Daraps, n. s. Ferrugineus, thorace nigro quadrivittato, abdo- 

 minefulvo, antennis pedibusque ferrugineis, alts subfulvis. 



Head piceous, clothed behind and more thickly beneath with 

 white hairs ; crown rather thickly clothed on each side with black 

 hairs ; front and clypeus covered with hoary down, the former with 

 a narrow yellow stripe on each side, the latter prominent, and beset 

 with black bristles : eyes dark bronze ; fore part flat, composed of 

 rather large facets : lip black, ferruginous, and clothed with tawny 

 hairs at the tip ; palpi tawny, and clothed with long white hairs : 

 feelers ferruginous, first and second joints covered with a pale yel- 

 low bloom, and beset with some short black bristles ; second joint 

 about half the length of the first; third joint spindle-shaped, longer 

 than the first and the second ; bristle black, longer than the third 

 joint : ridge of the neck beset with black bristles : chest ferruginous, 

 covered with a few short black hairs, beset on each side and behind 

 with black bristles, adorned with four broad black stripes ; the 

 middle pair widened in front ; the side pair short, and interrupted 

 by two oblique bands ; scutcheon beset with some pale yellow bris- 

 tles : breast dull ferruginous, piceous about the hips, thinly clothed 



