388 LIST OF DIPTERA. 



with black hairs : first and second joints of the feelers black, beset 

 with a few black bristles ; second joint much shorter than the first ; 

 third joint piceous, conical, as long as the first ; bristle piceous, 

 much longer than all the preceding joints : chest clothed with short 

 tawny hairs, and beset on each side and behind with black bristles, 

 which are most numerous on the scutcheon : abdomen ferruginous, 

 black at the base, shining towards the tip, which in the female is 

 armed with a circlet of short ferruginous spines, mostly piceous be- 

 neath in the male, thickly clothed with pale yellow hairs for about 

 one-third of the length near the base, much narrower than the chest 

 and about one-fifth longer ; its breadth decreases slightly from the 

 base to the middle, and thence more quickly to the tip : legs piceous, 

 stout, clothed with black hairs and beset with black spines and 

 bristles ; foot-cushions piceous above, dull ferruginous beneath ; 

 hind shanks pale tawny, clothed with pale yellow hairs ; hind feet 

 ferruginous towards the base : wings dark tawny; wing-ribs, veins 

 and poisers piceous. Length of the body 10 lines ; of the wings 

 20 lines. 



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



b. ? 



Asilus Lampon, n. s., mas. Piceus, nigro-pilosus, abdomine pilis 

 flavis vestito, antennis piceis, articulo 2° ferrugineo, femoribus 

 ferrugineis, tibiis flaws, tarsis nigris, alls fulvis basi et ad cos- 

 tam fuscis. 



Body piceous, a little narrower than the chest : head covered 

 with pale yellow down, clothed behind and beneath with yellow 

 hairs, beset behind the eyes with some black bristles ; crown black ; 

 front covered with a few yellow hairs ; clypeus dark ferruginous, 

 thickly beset with long pale yellow bristles : eyes black ; fore part 

 large, nearly flat, its facets larger than those of the other part : 

 lip stout, black, clothed with pale tawny hairs : feelers piceous ; first 

 and second joints beset with a few black hairs, of nearly equal 

 length; first joint dark ferruginous; third joint nearly spindle- 

 shaped, as long as the first and the second joints ; bristle black, very 

 much longer than the first and the second joints : chest clothed 

 with short black hairs, beset on each side and behind with black 

 bristles ; the scutcheon is thickly armed with these bristles, and, like 

 the breast and the sides of the chest, is covered with a ferruginous 

 bloom : abdomen narrower but not longer than the chest, decreasing 

 in breadth from the base to the tip, thickly clothed with pale yellow 

 hairs, which on the back are mingled with black hairs towards the 

 base, and the hairs are tawny towards the tip, which is black and 

 shining : legs stout, clothed with black hairs and beset with black 



