452 LIST OF DIPTERA. 



Asilus Agrius, n. s., mas. A. Lecythi, var. ? Fulvus, pectore cano, 

 abdomine fiavo-fusco sericeo vittis tribus nigris, antennis nigris, 

 articulo 3° basi fulvo, pedibus fulvis, femoribus nigris, tibiis 

 piceo cinctis apiceque piceis, tarsorum articulis apice piceis, 

 atis limpidis apicibus marginibusque posticis cinereis. 



Body tawny : head nearly as broad as the chest, thickly clothed 

 behind and beneath with yellow hairs, beset with black bristles 

 along the upper borders of the eyes ; crown and tubercle of the eye- 

 lets covered with a few black hairs ; front and clypeus covered with 

 shining yellowish white down, the latter prominent, and beset with 

 black bristles behind and with white bristles in front : eyes very dark 

 bronze ; fore part nearly flat, with facets larger than those of the 

 other part: feelers black, as long as the head ; first joint linear ; se- 

 cond joint club-shaped, much shorter than the first ; third joint 

 much longer than the first and the second, tawny at the base, linear 

 for two-thirds of the length, and tapering thence to the tip ; fourth 

 and following joints forming a spine, which is nearly half the length 

 of the third : lip black, clothed at the tip with short tawny hairs ; 

 palpi black, beset with black hairs : chest very thinly clothed with 

 short tawny hairs, and beset on each side with long black bristles ; 

 its disk black : breast with a hoary tinge, furnished with very few 

 yellow hairs : abdomen silky yellowish brown, tapering from the base 

 to the tip, narrower than the chest and rather more than twice 

 its length, clothed with short yellow hairs, beset on the sides of the 

 hind border of each segment with two or three tawny bristles, 

 adorned with three irregular black stripes, which are interrupted on 

 the hind borders of the segments : fore border of each segment, and 

 especially of the third, with a cross row of black punctures ; first 

 segment very short; second segment short, very convex, most thickly 

 clothed on each side with white hairs, and beset with a few tawny 

 and black bristles ; third segment long ; the following segments 

 successively decreasing in length ; eighth segment shorter than the 

 seventh ; ninth segment extremely short ; appendages large, black : 

 legs tawny, thickly clothed with short bright tawny hairs, and beset 

 with some black bristles, which on the shanks are more numerous 

 than on the thighs, but less so than on the feet ; hips and thighs 

 black, tips of the latter ferruginous ; shanks with a piceous band in 

 the middle, their tips and the tips of the joints of the feet are also 

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

 wings colourless, gray at the tips and along the hind borders ; in the 

 middle of the wing the gray appears only on the disks of the areolets, 

 but it colours the whole of them on the borders ; wing-ribs dark fer- 

 ruginous ; veins black, piceous towards the base ; poisers tawny. 

 Length of the body 6% lines ; of the wings 10 lines. 

 a. ? 



