. Diptera Danica: genera and species of flies hitherto found in Denmark. Diptera. 156 Orthorrhapha brachycera. metatarsus and the four following joints black; the fifth joint has the hairs at the upper margin mainly white, and the puvilli are large, white; the posterior tarsi black with the basal part of metatarsus yellow. The legs have short, black hairs, the front coxae somewhat longish hairs anteriorly; below the femora the hairs also a little longer, and the middle femora with long, bristly hairs below at the base; middle femora with one, sometimes two preapical bristles, hind femora with
. Diptera Danica: genera and species of flies hitherto found in Denmark. Diptera. 156 Orthorrhapha brachycera. metatarsus and the four following joints black; the fifth joint has the hairs at the upper margin mainly white, and the puvilli are large, white; the posterior tarsi black with the basal part of metatarsus yellow. The legs have short, black hairs, the front coxae somewhat longish hairs anteriorly; below the femora the hairs also a little longer, and the middle femora with long, bristly hairs below at the base; middle femora with one, sometimes two preapical bristles, hind femora with a number (five to nine) in two rows. Front tibise with bristles above and on the postero-ventral side; middle tibiae with two dorsal rows, and sometimes a ventral bristle; hind tibiae with two dorsal rows of bristles and a ventral row. Wings slightly greyish tinged; veins black; costa thickened on streak between the base and the apex of the subcostal vein; discal vein with a small bend, the apical. Fig. 47. Wing of T. ammobates d". part converging towards the cubital vein, the first posterior cell nar- rowly open; the bend lies nearer to the apex of the vein than to the posterior cross-vein, or about in the middle; the posterior cross-vein curved with the convex side outwards; it is placed after the middle, the apical part of the postical vein being shorter than the cross-vein; there is a more or less distinct blackish or brownish spot at the bend of the discal vein, and a seam at the posterior cross-vein. Squamulae whitish yellow, with a black fringe. Halteres whitish yellow, the base of the peduncle darkened. Female. Epistoma a little broader than in the male, as it is less narrowed above, grey or pale greyish yellow. Antennae some- what shorter than in the male. Front tarsi simple (but however a little compressed); middle femora without prominence below. The legs more bristly, front tibiae with two ventral rows. Length 5,3—5,8 mm. T. ammobates is common in Denmark on
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Keywords: ., bookauthorlu, bookcentury1900, bookdecade1900, booksubjectdiptera
