LIST OF DIPTEEA. 459 



clothed with tawny hairs : feelers black, full as long as the head ; first 

 and second joints clothed with black hairs ; second joint cup-shaped, 

 shorter than the first, which is linear; third joint spindle-shaped, as 

 long as the first and the second joints ; fourth and following joints 

 like a bristle, which is longer than the third joint: chest with 

 three indistinct hoary stripes, thinly clothed with short black hairs 

 and beset on each side and behind with black bristles : breast and 

 sides of the chest hoary, thinly clothed with short white hairs : ab- 

 domen compressed, much narrower than the chest and more than 

 twice its length, thinly clothed with white hairs ; first and second 

 segments short ; second segment very convex ; third and following 

 segments long ; last segment black, shining, very long, like a tail : 

 legs black, clothed with very short black hairs and beset with black 

 spines ; shanks tawny, with black tips ; claws black, tawny at the 

 base ; foot-cushions dull tawny : wings colourless ; wing-ribs pi- 

 ceous ; veins black ; poisers tawny. Length of the body 8 lines ; 

 of the wings 11 lines. 



j a. Port Stephen, New Holland. Presented by the Earl of Derby. 



| Asilus Echepolis, n. s., mas. Cinereus, thoracis vittis tribus nigris, 

 abdominis segmentorum marginibus posticis canis, antennis ni- 

 gris apice fulvis, pedibus fulvis, femoribus nigris, tibiis apice 

 piceis, tar sis nigris apice piceis, alis limpidis. 



Head narrower than the chest, covered with hoary down, 

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

 with a row of black bristles ; crown beset on each side with black 

 hairs ; front and clypeus covered with yellow down ; clypeus thickly 

 armed with black bristles : eyes dark bronze ; fore part flat, its facets 

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

 tip with short tawny hairs ; palpi black, beset with long black hairs : 

 feelers black; first and second joints beset with long black hairs ; 

 second joint not half the length of the first; third joint tawny, ta- 

 pering from the base to the tip, as long as the first ; bristle rather 

 stout, a little longer than the third joint: chest and breast gray: 

 j chest thickly clothed with rather long black and hoary hairs, beset 

 1 on each side and behind with black bristles, adorned with three 

 \ black stripes ; middle stripe slender, linear; side stripes shorter and 

 : broader : abdomen black, shining, narrower than the chest and full 

 I twice its length, slightly tapering from the base to the tip, thickly 

 | clothed with long hoary hairs, beset with some black bristles on the 

 I sides of the hind borders, which are hoary ; first and second seg- 

 ments very short ; third and following segments long, successively 

 decreasing in length : legs bright tawny, clothed with short black 

 and longer hoary hairs, armed with black bristles ; hips and thighs 



PART II. 2 S 



