. Diptera danica : genera and species of flies hitherto found in Denmark. Diptera -- Denmark. 222 Orthorrhapha brachycera. bristles in the dorsocentral rows. Scutellum with two bristles and some small hairs. All femora with a pair of præapical bristles. One Danish species 4. Zetterstedti. 4. Cl. Zetterstedti Fall. 1823. Fall. Dipt. Suec. Suppl. I, 7, 36—37 (Empis). — 1842. Zett Dipt. Scand. I, 362, 4 (Brachystoma). — 1858. Loew, Wien. entom. Monatschr. II, 249, 6. - 1862. Schin. F. A. I, 84. — 1881. Mik, Verhandl. zool. bot. Gesell. Wien, XXXI, Tab. XVI, Fig. 11. — 1903. Kat. palåarkt. Dipt. I
. Diptera danica : genera and species of flies hitherto found in Denmark. Diptera -- Denmark. 222 Orthorrhapha brachycera. bristles in the dorsocentral rows. Scutellum with two bristles and some small hairs. All femora with a pair of præapical bristles. One Danish species 4. Zetterstedti. 4. Cl. Zetterstedti Fall. 1823. Fall. Dipt. Suec. Suppl. I, 7, 36—37 (Empis). — 1842. Zett Dipt. Scand. I, 362, 4 (Brachystoma). — 1858. Loew, Wien. entom. Monatschr. II, 249, 6. - 1862. Schin. F. A. I, 84. — 1881. Mik, Verhandl. zool. bot. Gesell. Wien, XXXI, Tab. XVI, Fig. 11. — 1903. Kat. palåarkt. Dipt. II, 266. Male. Vertex, frons and epistoma brownish; palpi black. Occiput grey, with black, bristly hairs above, long, whitish hairs below. Antennæ black. Thorax dark olive-brown, unicolorous, at most with traces of a pair of longitudinal stripes. The disc has five long, black dorso- central bristles in each row, and very short and thin, biserial acro- stichal bristles. Further a humeral bristle, a posthumeral, two noto- pleural and a postalar bristle, all long, black; there is no supraalar bristle; besides there are small hairs anteriorly in the præsutural de- pression. Scutellum has two black marginal bristles, and some small hairs. Pleura brownish grey, metapleura with short, whitish hairs. Abdomen olive-brown above, bluish grey along the sides; it is clothed with short, blackish hairs. Venter grey or bluish grey, with whitish yellow hairs. The exterior genitalia directed forwards, the outer (lower) lamellæ rounded at the end, the inner (upper) lamellæ longer, drawn out into two small, rounded processes at the end, beset with longish hairs, the lower lamellæ likewise with somewhat long hairs. Penis brown, thread-like, sinuous at the apex. Legs black or blackish; coxæ greyish brown pruinose, and also the base of the femora more or less greyish. The legs are short-haired with brownish to blackish hairs, the front femora with a little longer hairs below towards
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