. Diptera Danica: genera and species of flies hitherto found in Denmark. Diptera. 236 Oithorihapha brachycera. the real arista is a little shorter than the third joint). Thorax black- ish brown, a little greyish pruinose, the humeri and a median, back- wards broader stripe yellow; the yellow colour of the humeri some- times continued stripe-like a little backwards. The short hairs on the disc pale. There is a yellow notopleural bristle. Scutellum yellow, postscutellum brownish black; scutellum has only short hairs. Pleura yellow, meta- and hypopleura black, somewhat greyish pruinose. Ab- domen
. Diptera Danica: genera and species of flies hitherto found in Denmark. Diptera. 236 Oithorihapha brachycera. the real arista is a little shorter than the third joint). Thorax black- ish brown, a little greyish pruinose, the humeri and a median, back- wards broader stripe yellow; the yellow colour of the humeri some- times continued stripe-like a little backwards. The short hairs on the disc pale. There is a yellow notopleural bristle. Scutellum yellow, postscutellum brownish black; scutellum has only short hairs. Pleura yellow, meta- and hypopleura black, somewhat greyish pruinose. Ab- domen brownish black, with very short, pale hairs; the last segment and the hind margin of the foregoing yellow, so that there is a yel- low, transverse band in front of the genitalia. Venter yellow. Geni- talia black, large and swollen, the upper lamellae with hooks at the apex, the ventral lamella long, triangular, pointed. Legs yellow, the tarsi slightly brownish at the end; front coxse long, almost as long as the femora. The legs are short-haired with yellow hairs, the front femora and tibiae armed in the usual way. Wings hyaline. Veins yel-. Fig. 10'^. Wing of H. raptoria. lowish brown; there is no discal and no anal cell, the anal vein wan- ting, and the lower branch of the postical vein only indicated; the radial vein is short; the base of the fork of the discal vein lies a little more apically than the apex of the radial vein. No stigma. Halteres whitish yellow. Female. Agreeing with the male; eyes likewise touching below the antennae and with the facets in front enlarged. Ovipositor black, in front of it a yellow, transverse band. Length 2,8—3,5 mm. H. raptoria has only been taken once, but in rather great num- ber, in Lersoen at Copenhagen on ^Vs 1841; it was found sitting on reeds. Geographical distribution: — Northern and middle Europe down into France; towards the north to northern Sweden, and in Finland. 5. H. oratoria Fall. 1815. Fall. Dipt. Suec. Empid. 10, 12. e
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Keywords: ., bookauthorlu, bookcentury1900, bookdecade1900, booksubjectdiptera
