LIST OF DIPTERA. 399 



Asilus femoratus. Erax femoratus, Macq. Dipt. Exot. i. 2, 115, 

 20. 



a. Georgia. From Mr. Abbot's collection. 



b. ? 



In two insects of this species the vein between the submarginal 

 areolets is double at its base in one wing. 



Asilus rufibarbis. Erax rufibarbis, Macq. Dipt. Exot. i. 2, 116, 



22. 

 a. ? 



Asilus stylatus, Fair. Syst. Ent. iv. 795, 19. Ent. Syst. iv. 384, 

 38. WiecL Dipt. Exot. i. 198, 30. Auss. Zweif. i. 462, 57. 

 Dasypogon stylatus, Fabr. Syst. Anil. 171, 31. 



a. ? From Mr. Children's collection. 



b. ? 



Asilus Sicyon, n. s., fern. Niger, thoracis lateribus pectoreque fer- 

 rugineo variis, antennis rufis apice nigris, pedibus nigris, alts 

 limpidis. 



Body black, covered with a gray bloom : head much narrower 

 than the chest, clothed behind and beneath with tawny hairs, beset 

 behind the eyes with black bristles ; crown covered with a few taw- 

 ny hairs, beset on each side with some black bristles ; front beset 

 with pale yellow hairs and black bristles ; clypeus armed with long 

 tawny bristles, and in front with black spines : eyes black ; fore part 

 slightly convex, its facets not much larger than those of the other 

 part : lip black, clothed at the tip with pale yellow hairs ; palpi 

 black, beset with black bristles : feelers black ; first and second 

 joints red, beset with a few black hairs ; second joint about half the 

 length of the first ; third joint spindle-shaped, as long as the first, 

 red at the base ; bristle longer than the third joint : ridge of 

 the neck beset with black bristles : chest thinly clothed with short 

 black hairs, beset on each side and behind with some black bristles ; 

 sides and breast partly ferruginous, and furnished with a few pale 

 yellow hairs : abdomen much narrower than the chest and about 

 twice its length, tapering from the base to the tip ; first and second 

 segments very short; third and following segments long, but succes- 

 sively decreasing in length : legs black, covered with a hoary bloom, 

 clothed with whitish hairs, armed with black spines ; foot-cushions 

 tawny : wings colourless, reaching when closed almost to the tip of 

 the abdomen ; wing-ribs and veins piceous ; poisers tawny, with 

 piceous knobs. Length of the body 9 lines ; of the wings 14 

 lines. 



a. Brazil. 



PART II. 2 N 



