Dolichopodidae. 239 



as the antennæ. Thorax metallic green, distinctly silvery pruinose, 

 especially when seen from in front, the hindmost part less pruinose; 

 acrostichal bristles long; scutellum not hairy. Pleura greenish, whitish 

 grey pruinose; the prothoracic bristles thin, whitish. Abdomen with 

 the ground colour appearing dark greyish, seen from behind with a 

 slight greenish colour, but from the base of the second segment densely 

 silvery; the first segment greenish; the second, third and generally 

 also the fourth segments with translucent yellow side spots, large on 

 the second and third, small or sometimes wanting on the fourth seg- 

 ment. Abdomen clothed with short black hairs, longer at the sides, 

 especially on the second segment; there are long hindraarginal bristles, 

 longest on the first segment; the eighth segment short-haired. Venter 

 yellow, with only the apical part grey; it has short, black hairs, and 

 bristles at the hind margins; at the base there are two tufts of long, 

 blackish hairs. Hypopygium with the ventral lobes and outer lamellæ 

 small. Legs with the coxæ grey, front coxæ often more or less 

 yellowish at the apex and behind, femora yellow, the anterior femora 

 generally more or less brownish at the basal part, and the hind 

 femora at the apical part, or the femora brownish or blackish, only the 

 anterior femora yellow at the apex; tibiæ yellow, hind tibiæ brownish 

 or blackish at the apex; the anterior tarsi blackish brown towards 

 the end, hind tarsi quitc black or blackish; hind metatarsus slightly 

 shorter than the second joint. The legs have short, blackish hairs; 

 hind coxæ with a row of four to five bristles on the outer side, 

 decreasing in length downwards; the anterior femora have long and 

 dense, somewhat bristly hairs below, the front femora also on the 

 posterior side, and the middle femora on the anterior side towards 

 the apex; the hind femora have shorter hairs above and below, longer 

 at the base on the posterior side; front tibiæ with bristles above, 

 middle tibiæ with two rows of dorsal, and two rows of smaller ven- 

 tral bristles, hind tibiæ with antero-dorsal and small ventral bristles, 

 and besides with a dense row of bristles or bristly hairs on the dorsal 

 and posterior side. Wings slightly brownish or yellowish tinged; veins 

 blackish brown, the discai bend even and not large, placed about in 

 the middle between the cross-vein and the apex. Squamulæ dirtily 

 yellowish with a black margin, and a long, black fringe. Halteres 

 yellow. 



Female. Epistoma broad, whitish grey. Palpi large, grey. An- 

 tennæ shorter than in the male, almost only half as long as the head, 

 third joint short, not as long as broad. Thorax not silvery, only whitish 

 pruinose, especially on the side parts, and most densely about the 

 humeri. Abdomen metallic green or æneous, whitish pruinose, especi- 



