. Diptera Danica: genera and species of flies hitherto found in Denmark. Diptera. 40 Orthorrhapha brachycera. postalar all black; about and behind the humeri there are yellow hairs. Scutellum grey with (about six) black marginal bristles. Pleura grey, metapleura with yellow hairs. Abdomen dark grey, slightly shining; narrow, pale grey hind margins to the segments are generally seen; venter lighter grey. Abdomen is clothed with erect, yellow hairs; venter similarly haired. Exterior genitalia somewhat large, the eighth ventral segment drawn out into two triangular lamellae, long yellow haired; o
. Diptera Danica: genera and species of flies hitherto found in Denmark. Diptera. 40 Orthorrhapha brachycera. postalar all black; about and behind the humeri there are yellow hairs. Scutellum grey with (about six) black marginal bristles. Pleura grey, metapleura with yellow hairs. Abdomen dark grey, slightly shining; narrow, pale grey hind margins to the segments are generally seen; venter lighter grey. Abdomen is clothed with erect, yellow hairs; venter similarly haired. Exterior genitalia somewhat large, the eighth ventral segment drawn out into two triangular lamellae, long yellow haired; on the dorsal side a pair of similar, but more hidden lamellae; the lower lateral lamellae somewhat shovel- shaped, with an obliquely cut, somewhat den- tated hind margin; they are black, somewhat Fig. 6. , shining, with yellow hairs below; the upper "male genitalia. lateral lamellae are of a complicated shape, each sending a somewhat blade-like, at the upper margin dark haired process forwards in over abdomen; at the base of this process there is a small, triangular outshoot above, and backwards each process has an almost rectangularly bent, somewhat styliform process. Penis is a thin, black thread curved several times, slightly thickened in the basal part, and here surrounded by a sheath. Legs somewhat robust, black; coxae greyish pruinose; the hind femora somewhat long, with two thickenings on the posterior side just before and behind the middle, and slightly incurved between them; front and hind metatarsi very slightly thickened. The front femora are short- haired; the middle femora have a ventral row of short, strong bristles, and a row of longer bristles more posteriorly; the hind femora have a ventral row of longer bristles; the anterior tibiae are short-haired, specially densely on the ventral side and with some longer bristles on the dorsal side; the hind tibiEe are similarly haired, but both the ventral hairs and the dorsal bristles are longer, and the
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Keywords: ., bookauthorlu, bookcentury1900, bookdecade1900, booksubjectdiptera
