. Diptera Danica: genera and species of flies hitherto found in Denmark. Diptera. 178 Orthorihapha brachycera. cox«, tarsi brownish or blackish towards the apex. Front femora with short hairs, especially above and on the posterior side; middle femora with a row of bristles on the anterior side; hind femora short- haired, a little longer above and below, and the hairs below long at the apex; front tibiae with some short bristles on the dorsal side; middle tibiae with some scattered bristles on the various sides; hind tibiae with longer bristles on the dorsal and anterior side. Front tibiae as l
. Diptera Danica: genera and species of flies hitherto found in Denmark. Diptera. 178 Orthorihapha brachycera. cox«, tarsi brownish or blackish towards the apex. Front femora with short hairs, especially above and on the posterior side; middle femora with a row of bristles on the anterior side; hind femora short- haired, a little longer above and below, and the hairs below long at the apex; front tibiae with some short bristles on the dorsal side; middle tibiae with some scattered bristles on the various sides; hind tibiae with longer bristles on the dorsal and anterior side. Front tibiae as long as femora, very slightly thickened towards the apex; metatarsi only slightly thickened, not thicker than the end of the tibiae, cylindrical, about three fourths of the tibiae in length, and about as long as the four following joints; all tarsal joints longer than broad. The hairs brownish, the bristles black. Wings slightly yellowish tinged. Veins brown to black; the cubital fork somewhat long, the upper branch slightly diverging, a little curved towards the apex. Stigma large, brown. Halteres dark brown with a yellow peduncle. Female. Frons slightly broader than in the male. Front metatarsi simple, about half as long as tibiae, and as long as the three following joints; hind tibiae simple; the bristles rather strong. The colour may be about the same as in the male, but often it is much darker, abdomen being lighter only at the base of the venter, pleura quite grey, and the legs nearly quite brownish or blackish, especially the hind legs. Length 4,5—5 mm. H. liirida is very rare in Denmark, only two specimens, both males, have been taken, in the vicinity of Copenhagen, one in earlier time (Staeger), and one later (H. J. Hansen). Geographical distribution: — Northern and middle Europe down into Austria; towards the north to middle Sweden, and in Finland. 23, H. lasiopyga n. sp. Male. Vertex and frons velvet black; epistoma bro\vnish black; palpi brownish yellow, with bl
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Keywords: ., bookauthorlu, bookcentury1900, bookdecade1900, booksubjectdiptera
