. Diptera danica : genera and species of flies hitherto found in Denmark. Diptera -- Denmark. 152 Oithorrhapha brachycera. lamellæ shining. Legs black or blackish; coxæ greyish pruinose; the knees somewhat broadly yellow. Femora short-haired, the hairs slightly longer above on the front and hind femora; middle femora with sonie few bristles basally on the anterior side; front tibiæ short-haired, only with a pair of small bristles at the apex; hind tibiæ only with a row of small bristles on the dorsal side and with fine hairs on the ventral side. Front metatarsi somewhat thicker than the end of
. Diptera danica : genera and species of flies hitherto found in Denmark. Diptera -- Denmark. 152 Oithorrhapha brachycera. lamellæ shining. Legs black or blackish; coxæ greyish pruinose; the knees somewhat broadly yellow. Femora short-haired, the hairs slightly longer above on the front and hind femora; middle femora with sonie few bristles basally on the anterior side; front tibiæ short-haired, only with a pair of small bristles at the apex; hind tibiæ only with a row of small bristles on the dorsal side and with fine hairs on the ventral side. Front metatarsi somewhat thicker than the end of the tibiæ, about two thirds of the tibiæ in length, and as long as the four following joints together; they are short-haired. All the hairs more or less dark brown. The fourth joint on the anterior tarsi is as Fig. 50. H. broad as long, the other joints longer. Wings hyaline. front leo'' ^eins black; the upper branch of the cubital vein diverging; X 30. the discai cell exceptionally long, its upper margin longer than the upper of the veins issuing from it. Stigma long, blackish. Balteres Fig. 51. Wing of H. discoidalis. Female. Similar to the male; front metatarsi simple, not qulte half as long as tibiæ, and shorter than the four following joints; hind tibiæ evenly but considerably thickened in somewhat more than the apical half; they are not compressed but very slightly curved. Length 2,8 to fully 3,5 mm. This species is distinguished from comicula by the very short, quite quadriserial acrostichal bristles, and from coracula by the same character and the hyaline wings; it resembles dypeata by the short thoracic bristles, but the latter species has biserial acrostichal bristles; the most distinguishing character is the length of the discai cell, this being longer than in any other species known to me, except minuta. H. discoidalis seems very rare in Denmark; it was first taken in this year (1910), and only three specimens, a male and two females, on a humid mea
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Keywords: ., bookcentury1900, bookdecade1900, bookpublishercopenhagengecgad
