406 LIST OF DIPTERA. 



shining : legs red, clothed with whitish hairs, and armed with black 

 spines ; hips gray ; thighs partly, knees, feet, and tips of shanks 

 black ; claws black, red at the base ; foot-cushions tawny : wings 

 with a slight tawny tinge ; wing-ribs ferruginous ; veins black, pi- 

 ceous towards the base ; poisers tawny. Length of the body 8 lines; 

 of the wings 11 lines. 



a. Jamaica. 



Asilus Amphissa, n. s., mas. et fem. Fwcw, thorace fulvo vittis 

 tribus fuscis, metathorace pectoreque canis, mari. abdomine cine- 

 reo, vittd postica fulva, apice nigro, fem. abdomine fulvo, anten- 

 nis pedibusque riigris, alls subfuscis apice obscurioribus. 



Body brown : head as broad as the crown, clothed with tawny 

 down, beset with black bristles behind, and clothed there and 

 beneath with very pale yellow hairs ; crown covered with brownish 

 tawny down, and furnished with some black hairs ; clypeus armed 

 with long black bristles behind, and with long bright yellow bristles 

 in front : eyes black ; fore part flat, distinct from the other part, ajid 

 composed of much larger facets : lip black, shining, clothed at the 

 base with long, and at the tip with very short yellow hairs : feelers 

 black; first and second joints beset with short black bristles; second 

 joint about half the length of the first ; third joint tapering from 

 the base to the tip, a little longer than the first; fourth and fifth 

 joints like a bristle, much longer than the third : chest dark tawny, 

 furnished with three rows of black hairs, beset on each side and be- 

 hind with black bristles, adorned with three broad brown stripes, of 

 which the side pair are short and irregular, the middle one includes 

 a paler stripe, and is joined by two oblique bands with the side 

 stripes ; sides, hind chest and breast hoary, the latter clothed with 

 white hairs : abdomen gray, clothed with white hairs, decreasing in 

 breadth from the base to the tip, much narrower than the chest and 

 about twice its length ; third, fourth, and fifth segments long, suc- 

 cessively decreasing in length ; sixth, seventh, and eighth segments 

 tawny, much shorter ; ninth segment large, smooth, shining, black, 

 covered with some black hairs, ferruginous at the base and beneath : 

 legs black, clothed with short yellow hairs ; hips gray, clothed with 

 white hairs ; thighs rather thick ; fore thighs beset with black 

 bristles ; hind thighs beset with black spines ; middle thighs armed 

 with some stouter black spines ; shanks ferruginous, with black tips, 

 each with a black stripe, which is smallest on the fore shanks ; fore 

 and middle feet ferruginous at the base ; claws black ; foot-cushions 

 yellow : wings light brown, darker at the tips ; wing-ribs ferrugi- 

 nous ; veins black, piceous towards the base ; poisers tawny. Fe- 

 male. — Abdomen dark tawny, with a gray bloom, more than twice 



