Archive image from page 403 of Diptera Danica genera and species Diptera Danica: genera and species of flies hitherto found in Denmark dipteradanicage02lund Year: 1907 Fig. 126. Antenna of B. bicolorellum (S, from the inside. X 100. From a dried object. brown pruinose, dull. Pleura slightly aeneous, grey pruinose, hypo- pleura somewhat yellowish; propleura with fine, white hairs. Abdomen yellow, more or fewer of the posterior segments (in my sole male the three last) with indefinitely bordered dark brown, transverse bands towards the front margin; sometimes abdomen quite yellow; it is clothe
Archive image from page 403 of Diptera Danica genera and species Diptera Danica: genera and species of flies hitherto found in Denmark dipteradanicage02lund Year: 1907 Fig. 126. Antenna of B. bicolorellum (S, from the inside. X 100. From a dried object. brown pruinose, dull. Pleura slightly aeneous, grey pruinose, hypo- pleura somewhat yellowish; propleura with fine, white hairs. Abdomen yellow, more or fewer of the posterior segments (in my sole male the three last) with indefinitely bordered dark brown, transverse bands towards the front margin; sometimes abdomen quite yellow; it is clothed with short, blackish hairs, and has short hindmarginal bristles, long on the first segment. Venter yellow, with pale hairs. Legs yellow, tarsi a little darkened towards the end. The legs have short, blackish hairs, coxae pale-haired; the posterior coxae each with a black bristle; the anterior femora have distantly placed, fine, longish hairs below, most obvious on the middle femora; posterior femora with a preapical bristle; front tibiae with a dorsal bristle, middle tibiae with three antero-dorsal, one postero-dorsal and one antero-ventral bristle; hind tibiae with two rows of dorsal, and a pair of small ventral bristles. Wings a little yellowish tinged; veins brownish. Squamulae pale yellow, with a yellow fringe. Halteres yellow. Fig. 127. Antenna of B. bicolorellum Q, from the inside. X 100. From a dried object. Female. Frons somewhat bluish; epistoma somewhat broad, greyish white. Antennae short, third joint not longer than broad, rounded in front. Thorax somewhat less densely pruinose than in the male. Length 2,5—2,7 mm.
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