. Diptera Danica: genera and species of flies hitherto found in Denmark. Diptera. 60 Orthorrhapha Fig. 22. Vh. albiceps, male forceps, from above. Venter greyLsh brown. Abdomen clothed with short, yellowish, in the middle line blackish, hairs; at the hind margins of the segments there are long, yellow bristles which are longest on the anterior segments and towards the sides. Venter sparingly clothed with long, pale hairs. Genitalia black, the lower forceps greyish at the base, the ventral lamella greyish as the foregoing segments; the hairs black above, yellowish below and at the
. Diptera Danica: genera and species of flies hitherto found in Denmark. Diptera. 60 Orthorrhapha Fig. 22. Vh. albiceps, male forceps, from above. Venter greyLsh brown. Abdomen clothed with short, yellowish, in the middle line blackish, hairs; at the hind margins of the segments there are long, yellow bristles which are longest on the anterior segments and towards the sides. Venter sparingly clothed with long, pale hairs. Genitalia black, the lower forceps greyish at the base, the ventral lamella greyish as the foregoing segments; the hairs black above, yellowish below and at the apex. The upper forceps with a large excision above. Legs black; coxae grey with long, greyish white hairs, and with stronger bristles; the legs for the rest clothed with short, depressed, greyish hairs so that they appear grey; on the tarsi the hairs sometimes partly blackish. Only some few long hairs on the ventral side of the front femora and tibise. The front femora without spine-like bristles below, three or four above; the posterior femora with some few; the tibiae with some long spine-hke bristles; these bristles are very varying in colour, they are generally white with exception of most of those on the dorsal side of the front tibiae and often some towards the apex of the posterior tibiae which are black. The spine-like bristles on the tarsi mainly black, yet also some white posteriorly on the anterior tarsi. Wings yellowish, veins brown. Halteres yellow. Female. With exception of the genital differences agreeing with the male; the ovipositor shining black. Length 13—20 mm. This species is easily known by the small epistomal callus, the somewhat slight hairiness, the slender, strongly excised forceps and the characteristic female ovipositor. P. alhiceps is common in Denmark in suitable localities; Vedbaek, Tisvilde, Jaegerspris; on Funen at Lundeborg on the eastern coast and at Faaborg; in Jutland at Frijsenborg, Silkeborg, Sondervig, Lon- strup, Frederikshavn, Skagen
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Keywords: ., bookauthorlu, bookcentury1900, bookdecade1900, booksubjectdiptera
