. Diptera Danica: genera and species of flies hitherto found in Denmark. Diptera. Dolichopodidae. 117 Length 4 to fully 5 mm. This species is in the male easily distinguished, as it is the only species with more than one ventral bristle on the middle tibiae, a bristle on the middle metatarsi and quite simple tarsi; the female is very similar to the female of festivus and ciliefenioratus, but it may, I think, be known by the almost quite white-haired front coxae, the paler and more pale-haired legs, and from festivus also by the gener- ally quite yellow hind tibiae; besides it has some yellow h
. Diptera Danica: genera and species of flies hitherto found in Denmark. Diptera. Dolichopodidae. 117 Length 4 to fully 5 mm. This species is in the male easily distinguished, as it is the only species with more than one ventral bristle on the middle tibiae, a bristle on the middle metatarsi and quite simple tarsi; the female is very similar to the female of festivus and ciliefenioratus, but it may, I think, be known by the almost quite white-haired front coxae, the paler and more pale-haired legs, and from festivus also by the gener- ally quite yellow hind tibiae; besides it has some yellow hairs at the sides of abdomen. D. arbustorum is very rare in Denmark, only two specimens, both females, have been taken at Svenstrup between Roskilde and Ringsted (H. J. Hansen). According to Verrall it prefers dry localities. Geographical distribution: — Northern and middle Europe down into Austria, Bohemia and Hungary; it seems to have its northern Hmit in Denmark, and it occurs also in England. 29. D. nitidus Fall. 1823. Fall. Dipt. Suec. Dol. 12, 9. — 1824. Meig. Syst. Beschr. IV, 80, 12. — 1843. Zett. Dipt. Scand. II, 558, 49, et 1859. XIII, 5054, 49. — 1862. Schin. F. A. I, 218. — 1903. Kat. palaarkt. Dipt. II, 301. — Dolichopus nitens Stann. 1831. Isis 1831, 48, 3. — Dolichopus ornatus Meig. 1824. Syst. Beschr. IV, 79,11. — 1831. Stann. Isis 1831,46,2. — — 1842. Sta^g. Kroyer's Tidsskr. IV, 14, 3. — Dolichopus jucundus Hal. 1833. Ent. Mag. I, 163. — Dolichopus coeruleicollis Meig. 1838. Syst. Beschr. VII, 160, 55. Male. Vertex and frons green, sometimes bluish green. Epistoma somewhat narrow, greyish white. Palpi yellow. Occiput green, greyish pruinose; postocular bristles whitish below, black above. Antennae. V Fig. 31. Antenna of D. nitidus d", from the inside. X 65. not as long as the head, third joint triangular, short, not longer than broad; the basal joints are yellow, sometimes slightly darkened above, third joint blackish, yellow benea
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