. Diptera Danica: genera and species of flies hitherto found in Denmark. Diptera. Stratiomyiidae. 55 Male. Head not especially large, only slightly broader than the thorax in the middle. Eyes bare, the facets in somewhat more than the upper half larger than below, the dividing line sharp; eyes greenish, unicolorous. Face slightly protruding, black, greyish haired; epistoma somewhat crest-shaped. Antennae black or dark brown, the two basal joints equal in length. Thorax brownish with erect, whitish grey pu- bescence and besides with short, depressed, golden hairs. Scutellum black, the apex and
. Diptera Danica: genera and species of flies hitherto found in Denmark. Diptera. Stratiomyiidae. 55 Male. Head not especially large, only slightly broader than the thorax in the middle. Eyes bare, the facets in somewhat more than the upper half larger than below, the dividing line sharp; eyes greenish, unicolorous. Face slightly protruding, black, greyish haired; epistoma somewhat crest-shaped. Antennae black or dark brown, the two basal joints equal in length. Thorax brownish with erect, whitish grey pu- bescence and besides with short, depressed, golden hairs. Scutellum black, the apex and spines yellow. Abdomen green or yellowish green with a broad, black, longitudinal band in the middle; the band dilated to the sides at the front margins of the single segments, especially on the third and fourth, but not reaching the side margin. Venter yellow- ish green or green. Abdomen with very short and fine, greyish pu- bescence, on the dorsal side sparingly clothed with longer hairs. Legs all yellow, sometimes with faint traces of a darker ring on the hind tibiae, sparingly yellow pubescent. Wings hyaline with the anterior. Fig. 22. Wing of 0. hydroleon. veins light yellow, cubital vein forked, the third of the veins rising from the discal cell rudimentary. Halteres greenish yellow. Female. Front, face and yowls yellow, the latter with a black spot on each side; front with a dark, impressed middle line, and above with a pair of blackish or brownish spots lying in slight im- pressions; ocellar tubercle black; hinder eye-margin yellow, golden haired. Thorax with depressed, pale golden pubescence both on the disc, sterna and pleura. Abdomen as in the male, the band-like lateral dilatations of the black dorsal stripe especially distinct. Length 9—10,5 mm. This species is very like 0. felina that has not hitherto been found in Denmark, but the latter has the abdominal dorsal stripe broader, and a black front with yellow spots in the female. — Schiner and Van says a
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Keywords: ., bookauthorlu, bookcentury1900, bookdecade1900, booksubjectdiptera
