. Diptera Danica: genera and species of flies hitherto found in Denmark. Diptera. 254 Orthorrhapha brachycera. 2. Halteres pale; hind tibiae with strong bristles 2. setigera. â Halteres dark; hind tibiae without strong bristles . .â 3. ^ 3. Wings hyaline, cross-veins distant 3. assitnilis. â Wings brownish tinged or hyaline, cross-veins near to each other ; ^^ 4. Wings more or less brownish tinged; the cubital vein curved upwards at the apex and here thin, discal vein almost straight 4, exilis, â Wings almost hyaline; cubital vein curved downwards to- wards the apex and terminating with full t
. Diptera Danica: genera and species of flies hitherto found in Denmark. Diptera. 254 Orthorrhapha brachycera. 2. Halteres pale; hind tibiae with strong bristles 2. setigera. â Halteres dark; hind tibiae without strong bristles . .â 3. ^ 3. Wings hyaline, cross-veins distant 3. assitnilis. â Wings brownish tinged or hyaline, cross-veins near to each other ; ^^ 4. Wings more or less brownish tinged; the cubital vein curved upwards at the apex and here thin, discal vein almost straight 4, exilis, â Wings almost hyaline; cubital vein curved downwards to- wards the apex and terminating with full thickness, discal vein with a curve behind the postical cross-vein 5. pusilla. 1, D. aterrima Curt. 1834. Curt. Brit. Entom. 397,3. â 1851. Walk. Ins. Brit. I, 136, 1. â 1859. Loew, Neue Beitr. zur. Kennt. d. Dipt. VI, 40, nota. â 1903. Kat. palaarkt. Dipt. II, 273. â Tachydromia nigritella: 1842. Zett. Dipt. Scand. I, 298, 32. â Drafyetis nigritella: 1903. Kat. palaarkt. Dipt. II, 274. â Drapetis nervosa: 1859. Loew, 37, 3. Male. Frons and vertex black; ocellar tubercle with two bristles; epistoma black above, grey below; palpi grey with black Fig. 111. Antenna of D. aterrima. X So. Occiput blackish above, grey downwards along the posterior eye- margin; it has a pair of long, black bristles ^bove. Antennae black, the second joint w^ith a long bristle, the third joint somewhat short ovate. Thorax black, shining, with a greyish, somewhat adpressed pubescence; towards be- hind there is a couple of somewhat longer, black dorso- central bristles. There are two notopleural and a postalar bristle, all black. Scutellum with two black marginal bristles and some smaller hairs. Pleura black, shining. Abdomen likewise black, shining, with short, dark or brownish hairs. Venter of the same colour. Legs black, trochanters, knees and the apex of the tibiae reddish; tarsi reddish or brownish; the front tibise may be almost quite pale. The posterior tibiae are on the poste
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Keywords: ., bookauthorlu, bookcentury1900, bookdecade1900, booksubjectdiptera
