. Diptera danica : genera and species of flies hitherto found in Denmark. Diptera -- Denmark. Dolichopodidae. 173 Remarks: It is curious that Loew (Neue Beitr. V, 19) says about this species, that it has a hairy (behaartes) scutelkim and is distin- guished from related species by this character; also Verrall (Ent. Month. Mag. XII, 1875, 34) says the same; the species has in reahty no hairy scutellum, there are only some very few, short hairs above as in the other species of Herxostomus. H. gracilis is somewhat rare in Denmark, and it was first detected in 1908; Rørvig, Melby at Tisvilde, Faxe
. Diptera danica : genera and species of flies hitherto found in Denmark. Diptera -- Denmark. Dolichopodidae. 173 Remarks: It is curious that Loew (Neue Beitr. V, 19) says about this species, that it has a hairy (behaartes) scutelkim and is distin- guished from related species by this character; also Verrall (Ent. Month. Mag. XII, 1875, 34) says the same; the species has in reahty no hairy scutellum, there are only some very few, short hairs above as in the other species of Herxostomus. H. gracilis is somewhat rare in Denmark, and it was first detected in 1908; Rørvig, Melby at Tisvilde, Faxe Ladeplads, and on Born- holm at Hammeren (the author). My dates are only ^^iiâ^Vs. It occurs in bushes and in low herbage, sometimes at ditches, and especially near the shore; the localities, on which I have taken it, are almost all sandy and not at all humid. Geographical distribution:â Northern and middle Em'ope down into France; tov^ards the north to southern Sweden, 2. H. germanus Wied. 1817. Wied. Zool. Mag. I, 71, 17 (Dolichopus). â 1824. Meig. Syst. Beschr. IV, 95, 36 (Dolichopus). â 1831. Stann. Isis 1831, 251, 40 (Doli- chopus). â 1842. Stæg. Krøyer's Tidsskr. IV, 38,32 (Dolichopus). â 1843. Zett. Dipt. Scand. II, 570,60, et 1852. XI, 4295, 60, et 1859. XIII, 5058, 60 (Dolichopus). â 1862. Schin. F. A. I, 207 (Gymnopternus). â 1903. Kat. palÃ¥arkt. Dipt. II, 311. Male. Vertex and frons greenish, greyish or yellowish grey dusted. Epistoma narrow, greyish or slightly yellowish. Palpi dark. Occiput green, greyish pruinose; postocular bristles yellowish below, black. Fig. 51. à ntenna of H. germanus cf, from the inside. X 65. above. Antennæ black, slightly elongated, as long as the head, third joint longer than broad, truncately pointed or rounded at the end. Thorax æneous green, slightly pruinose, shining; scutellum bare, only with some few, pale hairs at the margin. Pleura greenish, grey pruinose; propleura with a few pale hairs above, and with
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