Diptera danica : genera and species of flies hitherto found in Denmark . Fig. 104. P. scambus q. right front leg from below. X 20. Platychirus. 211 7. P. immarginatus Zett. 1849. Zett. Dipt. Scand. VIII, 3149, 52—53 (Scaeva). — 1862. A. 1, 296. — 1901. Verr. Brit. Fl. VIII, 287, 10, fig. 247. — 1907. åarkt. Dipt. III, 44. — Scaeva ferrnginea var. c. 1843. Zett. Dipt. , 749. — Scaeva podagrata Zett. p. p. 1843. 1. c. II, 751. — P. podagratus1862. Schin. F. A. I, 296. Male. Frons and epistoma greenish black, brownish yellow pruinose,somewhat thinly on the frons; the centr
Diptera danica : genera and species of flies hitherto found in Denmark . Fig. 104. P. scambus q. right front leg from below. X 20. Platychirus. 211 7. P. immarginatus Zett. 1849. Zett. Dipt. Scand. VIII, 3149, 52—53 (Scaeva). — 1862. A. 1, 296. — 1901. Verr. Brit. Fl. VIII, 287, 10, fig. 247. — 1907. åarkt. Dipt. III, 44. — Scaeva ferrnginea var. c. 1843. Zett. Dipt. , 749. — Scaeva podagrata Zett. p. p. 1843. 1. c. II, 751. — P. podagratus1862. Schin. F. A. I, 296. Male. Frons and epistoma greenish black, brownish yellow pruinose,somewhat thinly on the frons; the central knob shining. Vertex yellow-haired, at the front angle dark hairs; frons black-haired. Epistomawith not long, yellow hairs, it is rather flat, the central knob slightlyprominent. Occiput yellowish pruinose, with yellow hairs, among whichno black. Antennæ rather short, shorter than in scamhus, third joint. Fig. 105. Antenna of P. immarginatus d, from the inside, x 85. quadrate, not at all longer than broad; arista short and thick, shorterthan the antennæ. Thorax greenish æneous, shining, with somewhat I short, yellow hairs. Pleura with long, yellow hairs. Abdomen veryextensively yellow as only the base, a narrow middle line and verynarrow hind margins of second to fourth segments are black; fifthsegment quite yellowish with a black middle line. Abdomen is clothedwith short, yellow hairs, longer at the sides towards the base; on themiddle line are sonie black hairs. Venter yellowish, translucent, withlongish, pale hairs, short on fourth segment. Anterior legs yellow,only front femora somewhat darkened behind and with two spotsbelow at base, and middle femora darkened below; hind legs as inscamhus with femora and tibiæ blackish with base and apex yellow,tarsi blackish with second and third joints yellow. Front trochanterswith small, yellow spines below; front femora behind at the basew
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