. Diptera Danica: genera and species of flies hitherto found in Denmark. Diptera. :)^Q Orthorrhapha brachycera. closing the discal cell apically are brownish seamed, so that the wing shows three more or less distinct, brownish spots; anal vein very weak. No stigma. Halteres Fig, 90. Wing of CI. stagnalis. Female. Similar to the male in all respects, except the differences in the exterior genitalia. Length 3,5—4,2 mm. CI. stagnalis seems to be somewhat rare in Denmark, and not many specimens have been caught, all in Jutland; at Silkeborg, Hald S0 (the author), Struer (H. J. Hansen) and
. Diptera Danica: genera and species of flies hitherto found in Denmark. Diptera. :)^Q Orthorrhapha brachycera. closing the discal cell apically are brownish seamed, so that the wing shows three more or less distinct, brownish spots; anal vein very weak. No stigma. Halteres Fig, 90. Wing of CI. stagnalis. Female. Similar to the male in all respects, except the differences in the exterior genitalia. Length 3,5—4,2 mm. CI. stagnalis seems to be somewhat rare in Denmark, and not many specimens have been caught, all in Jutland; at Silkeborg, Hald S0 (the author), Struer (H. J. Hansen) and Tinbsek Molle at Linden- borg Aa (J. P. Kryger); the dates are ^^/e to August. It occurs near or over water, at Hald S0 I took it on the humid border and on the surface just at the border. Geographical distribution: — Europe down into Italy and Spain. It goes far towards the north, in Scandinavia to the northernmost parts, and it has been caught on the Faroe-Islands and in Greenland; in the latter I took it running on the surface of shallow water pools in somewhat great number. 3. CI. Wesmaelii Macq. 1835. Macq. Suit, a Buff. II, 656, 1, Tab. XXIV, fig. 17 (Paramesia). — 1838. Meig. Syst. Beschr. VII, 79, 3 {Brachystoma). — 1842, Zett, Dipt. Scand. I, 364, 6, p,p, {Brachystoma). — 1858. Loew, Wien. entom. Monatschr, II, 257, 11, - 1862, Schin, F. A. I, 85. — 1881. Mik, Verb. zool. hot. Gesell. Wien, XXXI, 326. — 1903. Kat. palaarkt. Dipt. II, 264. Male. Frons and vertex olive-brown; epistoma silvery white; palpi blackish. Occiput grey, above with black bristles, below with whitish hairs. Antennae black or brownish black. Thorax olive-brown, with two longitudinal, darker brown stripes, abbreviated behind; the space between the stripes greyish brown. The disc has five long, black dorsocentral bristles in each row, but no acrostichal bristles. Further a humeral bristle, a posthumeral, two notopleural, a supraalar and a postalar bristle, all long, black. Scutellum wit
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Keywords: ., bookauthorlu, bookcentury1900, bookdecade1900, booksubjectdiptera
