. Diptera danica : genera and species of flies hitherto found in Denmark. Diptera -- Denmark. 162 Orthorrhapha brachycera. tracks filled with water; I have taken it over water in copula on '^N and then it had small Chironomids as prey. As mentioned in the de- scription of the genus it is known to envelop the prey in a web. Geographical distribution: — Europe down into Italy; towards the north to northern Scandinavia, and in Finland. 12. H. aéronetha Mik. 1892. Mik, Wien. ent. Zeitg. XI, 81. — 1892. Strobl, Verh. zool. hot. Gesell. Wien, XLII, 158, nota. — Hilara angustifrons: 1892. Strobl, 1.
. Diptera danica : genera and species of flies hitherto found in Denmark. Diptera -- Denmark. 162 Orthorrhapha brachycera. tracks filled with water; I have taken it over water in copula on '^N and then it had small Chironomids as prey. As mentioned in the de- scription of the genus it is known to envelop the prey in a web. Geographical distribution: — Europe down into Italy; towards the north to northern Scandinavia, and in Finland. 12. H. aéronetha Mik. 1892. Mik, Wien. ent. Zeitg. XI, 81. — 1892. Strobl, Verh. zool. hot. Gesell. Wien, XLII, 158, nota. — Hilara angustifrons: 1892. Strobl, 1. c. 132, 23. Male. Vertex and frons velvet black, above the antennæ a small, brownish triangle; frons narrow, above the antennæ scarcely as broad as the base of the third antennal joint. Epistoma brownish black; palpi greyish, with long, black hairs. Occiput velvet black above, down- wards dark grey, with strong, black hairs. Antennæ black. Thorax dark* grey, very slightly shining, with a broad median, brownish black stripe, somewhat abbreviated behind, and with the sides of the disc of the same colour. The dorsocentral and acro- stichal bristles of moderate length, black, the former uniserial, long behind, the latter quadri- serial. Further a humeral bristle, two posthumeral, three notopleural, a supraalar and a postalar bristle, all black and rather strong; besides there are somewhat long hairs anteriorly in the præ- sutural depression and in front of the supraalar bristle. Scutellum with four strong, black marginal bristles. Pleura grey or brownish grey pruinose; humeri with a small, reddish point. Abdomen duU grey, with a not very distinct, dark middle line; with the light from behind abdomen is slightly shining and with the front part of the segments blackish; the sides and hind parts ash-grey. It is clothed with somewhat long, black hairs, longest at the sides; the hairs at the hind margin of the segments somewhat longer; towards the sides at the base the hairs
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