. Diptera danica : genera and species of flies hitherto found in Denmark. Diptera -- Denmark. Dolichopodidae. 307 Male. Vertex and frons blackish grey. Epistoma narrow, whitish. Palpi pale yellow. Occiput blackish grey; postocular bristles black, quite below a little paler; the bristles on vertex blackish. Antennæ about as long as the head, brownish black, yellow at the base and below. Thorax yellow or ferruginous, the bristles black. Pleura like- wise yellow, below the wing root a black spot; propleura with a black bristle. Abdomen blackish or blackish brown, clothed with short, blackish hair


. Diptera danica : genera and species of flies hitherto found in Denmark. Diptera -- Denmark. Dolichopodidae. 307 Male. Vertex and frons blackish grey. Epistoma narrow, whitish. Palpi pale yellow. Occiput blackish grey; postocular bristles black, quite below a little paler; the bristles on vertex blackish. Antennæ about as long as the head, brownish black, yellow at the base and below. Thorax yellow or ferruginous, the bristles black. Pleura like- wise yellow, below the wing root a black spot; propleura with a black bristle. Abdomen blackish or blackish brown, clothed with short, blackish hairs, and with hindmarginal bristles, which are a little longer on the tirst segment. Venter yellow, with pale hairs. Hypopygium with some longish hairs at the end; of appendages I could only see the outer lamellæ, which are somewhat long, pale yellow, narrow and lancet-shaped, with longish hairs. Legs yellow, tarsi with the last joint blackish; hind metatarsus somewhat shorter than the second joint. The legs have short, blackish hairs; the anterior coxæ with blackish or brown bristles or bristly hairs anteriorly, hind coxæ with a bristle on the outer side; front femora with a httle longer hairs below, and here with a bristle near the base; posterior femora. Fig. 97. Wing- of A. ftavicolUs 9. with a preapical bristle; front tibiæ with a small bristle above near the base; middle tibiæ with two antero-dorsal bristles, and with one postero-dorsal near the base; hind tibiæ with dorsal rows of bristles. Wings slightly yellowish tinged; veins brown or pale brown; discai and cubital veins almost parallel, slightly diverging outwards. Squamulæ yellow, with a blackish or brown fringe. Halteres yellow. Female. Epistoma very slightly broader, and the antennæ only slightly shorter than in the male; the spot on the pleura more brownish. No bristle below at the base of the front femora; for the rest quite similar to the male. Length 2—2,2 mm. A. fiavicollis is, as the preceding speci


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