226 LIST OF DIPTERA. 



eyes, thickly clothed with black hairs above, and more thinly with 

 white hairs beneath : mouth and feelers black : palpi tawny : eyes 

 red : chest-tawny gray, with a few black bristles on each side, hav- 

 ing also three indistinct brown stripes on the back ; breast and sides 

 of the chest hoary : abdomen brown above, and thinly clothed with 

 yellow hairs : first segment gray ; the following segments having 

 each a gray band along the hind border, which is yellow, these 

 bands are widened on the sides ; there is a tawny spot on the side of 

 each segment, and the segments beneath are tawny, with yellow 

 hind borders : legs tawny ; hips and trochanters gray, the former 

 furnished with yellow hairs and long black bristles ; thighs beset 

 with yellow hairs and short black bristles, and having each a piceous 

 stripe along the upper side ; shanks and feet furnished with long 

 and short black bristles, the latter are piceous: wings tawny, 

 especially at the base and along the fore border ; brands darker 

 tawny ; veins piceous ; poisers tawny, their knobs mostly brown. 

 Length of the body 4 lines ; of the wings 8 lines. 



a. New Holland. Presented by the Haslar Hospital. 



"hereva concolor, n. s., fern. Fulva, capite subtus flavo-albo, 

 thorace fusco sexvittato, pectore abdomineque cinereis, antennis 

 piceis, basi pedibusque fulvis, alls subcinereis. 



Head tawny, clothed with black hairs, yellowish white and 

 jlothed with white hairs beneath : mouth piceous : eyes red : feel- 

 ers piceous ; first joint tawny, covered with black bristles : chest 

 tawny, with six very indistinct narrow brown stripes, clothed with 

 short black hairs, and having a few black bristles on each side : 

 breast gray, and clothed with white hairs : abdomen gray, with a 

 tawny tinge, and clothed with white hairs ; hind borders of the seg- 

 ments hoary : legs tawny ; hips gray, with short white and black 

 bristles ; thighs clothed with short black and white hairs, and armed 

 with one or two black bristles near their tips ; shanks darker than 

 the thighs, furnished with black bristles ; feet still darker ; first joint 

 beset with short black bristles, and having two longer bristles at its 

 tip ; following joints clothed with black hairs and with a very few 

 black bristles : wings slightly gray, somewhat tawny at the base and 

 along the fore border ; veins and poisers tawny. Length of the 

 body 5 lines ; of the wings 10 lines. 



a. New Holland. From Mr. Lambert's collection. 



