Diptera danica : genera and species of flies hitherto found in Denmark . 1822. Meig. III, 395, 17. — 1842. Zett. Dipt. Scand. II, 659, 5 et 1855. XII,4651,5 et 1859. XIII, 5080, 5 {Syrphus). — 1862. Schin. F. A. I, 335. —1901. Verr. Brit. FL VIII, 510, 6, figs. 353—354. — 1907. Kat. palå III, 103. Male. Vertex blackish, a littie pruinose; frons yellowish pruinose,epistoma grey pruinose all over without black middle stripe, only thelower side parts are black; jowls black, partly grey pruinose. Vertexwith yellow, anteriorly black hairs, frons with yellow hairs and epi-stom
Diptera danica : genera and species of flies hitherto found in Denmark . 1822. Meig. III, 395, 17. — 1842. Zett. Dipt. Scand. II, 659, 5 et 1855. XII,4651,5 et 1859. XIII, 5080, 5 {Syrphus). — 1862. Schin. F. A. I, 335. —1901. Verr. Brit. FL VIII, 510, 6, figs. 353—354. — 1907. Kat. palå III, 103. Male. Vertex blackish, a littie pruinose; frons yellowish pruinose,epistoma grey pruinose all over without black middle stripe, only thelower side parts are black; jowls black, partly grey pruinose. Vertexwith yellow, anteriorly black hairs, frons with yellow hairs and epi-stoma all over with pale yellowish, rather dense and decumbent hairs;the epistoma rather flat, very slightly hoUowed below the antennæ,the central knob very small and below it epistoma slightly retreatingand also slightly descending. Occiput whitish grey or silvery alongthe eye-margin to above the middle, for the rest brownish yellowpruinose, the hairs white below, yellow above and here a few blackhairs. Eyes with somewhat short, brown hairs. Antennæ somewhat. Fig. 154. Antenna of E. arbustorum d, from the inside. X 60. small, brownish black, third joint with the upper front corner rounded;arista brown, plumose on the basal half. Thorax blackish brown, alittie shining on the posterior half, the front half more pruinose withindications of a pair of paler stripes (or in reality with two approx-imated, darker stripes in the middle and a roundish spot at each side, Eristalis. 431 but indistinct); thorax Is clothed with longish, yellow hairs. Scutellumbrownish yellow with similar hairs as on thorax. Pleura with long,pale yellow hairs. Abdomen black, dull, but with a transverse, shiningstripe on third and fourth segments, on third segment generally onlypresent on the black part and sometimes the stripes are divided inthe middle. Abdomen has large but somewhat varying reddish yeliowside spots and the hind margins of the segments are yellow; whenthe spots have their greatest e
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