. Diptera danica : genera and species of flies hitherto found in Denmark. Diptera -- Denmark. Empididae. 95 quite yellow pleura, the long antennæ with miich elongated first joint, the presence of a supraalar bristle and the shape of the male genitalia. E. trigramma is common in Denmark; Frederiksberg Have, Amager, Utterslev Mose, Charlottenlund, Ermelund, Geel Skov, Tyve- krogen, Boserup near Roskilde; on Langeland at Lohals and in Jut- land at Ringkjøbing and Silkeborg. It is a spring species; my dates are ^^/s—Vt, It occurs in the outskirts of woods, in fens and also on fieids and is found o
. Diptera danica : genera and species of flies hitherto found in Denmark. Diptera -- Denmark. Empididae. 95 quite yellow pleura, the long antennæ with miich elongated first joint, the presence of a supraalar bristle and the shape of the male genitalia. E. trigramma is common in Denmark; Frederiksberg Have, Amager, Utterslev Mose, Charlottenlund, Ermelund, Geel Skov, Tyve- krogen, Boserup near Roskilde; on Langeland at Lohals and in Jut- land at Ringkjøbing and Silkeborg. It is a spring species; my dates are ^^/s—Vt, It occurs in the outskirts of woods, in fens and also on fieids and is found on bushes and low piants; sometimes it niay occur in great numbers. I have taken it in copula on ^^/e. The pupa was found in the ground in Geel Skov on '^'^U^ it developed on ^/5. Geographical distribution: — Northern and middle Europe down into Austria and Styria; towards the north to southern Sweden. 6. E. lutea Meig. 1804. Meig. Klass. eur. zweifl. Ins. I, 228, 24. — 1822. Meig. Syst. Beschr. III, 37, 40. — 1862. Schin. F. A. I, 107. — 1867. Loew, Berl. ent. Zeitschr. XI, 17 et 21, 9. — 1903. Kat. palåarkt. Dipt. II, 239. Male. Eyes broadly separated, frons yellow; epistoma and jowls pale yellow. Vertex and occiput yellow, only the ocellar tubercle brown; occiput with a few black hairs. Labrum ferruginous; palpi pale yellow with fine hairs at the apex. Antennæ a little longer than the head, blackish or brownish; the first joint elongated, this and the second with short hairs; the third joint not quite twice as long as the two first together. Thorax yellow, slightly shining, The dorsocentral bristles somewhat short, not longer behind, irregularly uniserial or somewhat biserial, black. Further, a humeral bristle, a posthumeral, a notopleural, a supraalar and a postalar bristle, all black; besides there are some smaller but however conspicuous hairs both on the sides and in the præsutural depression. Scutellum yellow, with two black marginal bristles. Pleura yel
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