Archive image from page 124 of Diptera danica genera and Diptera danica : genera and species of flies hitherto found in Denmark dipteradanicagen06lund Year: 1907 Paraspiniphora. 113 above the middle, middle tibiæ with a pair near the upper fourth and an anterior at about the lower third, hind tibiæ with four bristles, a dorsal near the middle, two more anterior, one at the upper third and one near apex, and fmally one anterodorsal bristle at the middle. Wings yellowish; veins brown; costa reaching beyond the middle, 1 at most double 2; costal cilia rather short; fourth vein somewhat strongl
Archive image from page 124 of Diptera danica genera and Diptera danica : genera and species of flies hitherto found in Denmark dipteradanicagen06lund Year: 1907 Paraspiniphora. 113 above the middle, middle tibiæ with a pair near the upper fourth and an anterior at about the lower third, hind tibiæ with four bristles, a dorsal near the middle, two more anterior, one at the upper third and one near apex, and fmally one anterodorsal bristle at the middle. Wings yellowish; veins brown; costa reaching beyond the middle, 1 at most double 2; costal cilia rather short; fourth vein somewhat strongly curved at base. Halteres yellow. Female. Similar; the antennæ smaller with arista much more distinctly pubescent, and palpi with ordinary bristles; further the tarsi show a peculiar sexual difference; on the anterior tarsi the last Fig. 44. Wing of P. Bergenstammi $. joint is relatively a little larger than in the male and more hairy, the claws are long and broad, the empodium long, curved upwards and hairy below the apical part, the hair above, between the claws is long, curved downwards, flattened and band-shaped; also the pulvilli are larger; the same features are present on the hind tarsi, but to a smaller degree. The seventh abdominal segment is deeply excised above and often reddish. Length. The species may vary very considerably in size, the length from 1,5 to 3,5 mm, the female is generally the larger. Both Mik and Becker describe the thorax in the female as often brown, in my material it is black in both sexes. P. Bergenstammi is not rare in Denmark, Ermelund, Holte, Hillerød, Suserup Skov at Sorø (Th. Mortensen), Bogø south of Sea- land (the author), at Strandby on Lolland (ørgensen); the dates of capture are in July; it was for the first time taken in 1917. I have bred it in some numbers from shells of H. hortensis nemoralis and lapicida taken by Mr. Jørgensen at Strandby in the first months of the year, the imagines developed in April, but the develo
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