. Diptera danica : genera and species of flies hitherto found in Denmark. Diptera -- Denmark. Empididae. 179 a posthumeral, three notopleural, a supraalar and a postalar bristle, all somewhat long, black; besides there are some other hairs on the sides of the disc. Pleura dark grey. Scutellum with four strong, black marginal bristles. Abdomen dull black, densely clothed with black hairs, and with long marginal bristles on the segments. Venter similarly coloured, short-haired. Exterior genitalia small, only slightly compressed, the lamellæ a little shining. On the sides at the hind margin of th
. Diptera danica : genera and species of flies hitherto found in Denmark. Diptera -- Denmark. Empididae. 179 a posthumeral, three notopleural, a supraalar and a postalar bristle, all somewhat long, black; besides there are some other hairs on the sides of the disc. Pleura dark grey. Scutellum with four strong, black marginal bristles. Abdomen dull black, densely clothed with black hairs, and with long marginal bristles on the segments. Venter similarly coloured, short-haired. Exterior genitalia small, only slightly compressed, the lamellæ a little shining. On the sides at the hind margin of the eighth ventral segment there are long, erect, fan-like spread hairs. Legs black or blackish; coxæ grey pruinose; on the front legs the coxæ, femora and the base of the tibiæ yellowish, and likewise, but to a slighter degree on the middle legs; also the hind legs with the base of the femora light, and with yellow knees. Front femora with somewhat long hairs on the postero-dorsal side; middle femora with strong bristles on the anterior side; hind femora with longish hairs above and below, longest below; front tibiæ with short hairs and some bristles above; middle tibiæ short-haired; hind tibiæ with bristles on the dorsal and anterior side. Front tibiæ a little thickened towards the apex, metatarsi somewhat thicker, a little compressed, with a little longer hairs on the dorsal side and a pair of bristles at the apex; they are about two thirds of the tibiæ in length, and as long as the three foUowing joints; the middle metatarsi have a little dilatation at the base on the posterior side, beset with a little longer hairs. All tarsal joints longer than broad. Wings some- what dark tinged. Veins blackish; the upper branch of the cubital vein originating about rectangularly, only slightly diverging, and slightly curved at the apex; anal vein distinct, brownish, not reaching the margin. Stigma blackish brown. Halteres black. Female unknown. Length 2,7—3 mm. This species is
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Keywords: ., bookcentury1900, bookdecade1900, bookpublishercopenhagengecgad
