LIST OF D1PTERA. 439 



ginous : breast hoary : abdomen dark brown, narrower than the 

 chest, and much more than twice its length, tapering from the base 

 to the tip, clothed with very short hoary hairs, beset on each side 

 with a few long hoary hairs and bristles ; hind borders of the seg- 

 ments pale brown ; first and second segments very short ; third and 

 following segments long, successively decreasing in length ; tip 

 compressed, black, shining : legs piceous, clothed with short black 

 hairs, armed with black spines ; inner-side of thighs and of shanks 

 mostly tawny ; foot-cushions tawny : wings with a slight gray tinge, 

 brown along the hind borders, and for one-third of the length from 

 the tips ; wing-ribs piceous ; veins black ; poisers tawny. Length 

 of the body 11 lines ; of the wings 16 lines. 



a. ? From Mr. Children's collection. 



Asilus Penarius, n. s., fern. Fuscus, thoracis vittis tribus falvis, 

 pectore abdominis fasciis ventreque canis, abdominis apice, an- 

 tennis pedibusque nigris, alis limpidis. 



Head narrower than the chest, covered with pale tawny down, 

 clothed behind and beneath with white hairs, beset behind the eyes 

 with a row of black bristles ; crown with a few black hairs on each 

 side ; clypeus prominent, thickly armed with long white bristles, and 

 having a few black bristles on the hinder part : eyes bronze ; fore 

 part flat, its facets larger than those of the other part : lip black, 

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

 long black hairs : first and second joints of the feelers black, covered 

 with gray down, beset with short black bristles; second joint much 

 shorter than the first: chest brown, clothed with long and short 

 black hairs, beset on each side and behind with some yellow 

 and black bristles, adorned with three dull pale tawny stripes ; 

 middle stripe indistinct ; side stripes connected with the sides by 

 four oblique pale tawny bands ; sides and breast hoary, with a taw- 

 ny tinge : abdomen pale brown, narrower than the chest, and 

 full twice its length, tapering from the base to the tip, which 

 is black and shining, clothed with short pale yellow hairs, beset on 

 each side of the hind borders of the segments with a few pale yellow 

 bristles ; sides and hind borders of the segments and under-side 

 hoary ; first and second segments very short ; second segment 

 arched, adorned with a cluster of white hairs and bristles on each 

 side ; third segment long, crossed by rows of black punctures, with 

 some long whitish hairs on each side ; following segments succes- 

 sively decreasing in length; under-side thinly clothed with long 

 pale yellow hairs : legs black, thickly clothed with short pale tawny 

 hairs, armed with black and white spines ; foot-cushions tawny : 

 wings colourless, reaching when closed nearly to the tip of the ab- 



2 Q 3 



