Archive image from page 108 of Diptera danica genera and Diptera danica : genera and species of flies hitherto found in Denmark dipteradanicagen06lund Year: 1907 Chaetoneurophora. 97 the end of the first third and one at apex; all bristles rather strong. Wings somewhat yellowish tinged, veins brownish; costa reaching considerably beyond the middle, a little strenger than in fennica 1 slightly longer than 2 + 3; fork acute; costal cilia short, but stronger than in fennica; fourth vein issuing behind the base of the fork, Fig. 38. Wing of Ch. curvinervis . considerably curved in its first
Archive image from page 108 of Diptera danica genera and Diptera danica : genera and species of flies hitherto found in Denmark dipteradanicagen06lund Year: 1907 Chaetoneurophora. 97 the end of the first third and one at apex; all bristles rather strong. Wings somewhat yellowish tinged, veins brownish; costa reaching considerably beyond the middle, a little strenger than in fennica 1 slightly longer than 2 + 3; fork acute; costal cilia short, but stronger than in fennica; fourth vein issuing behind the base of the fork, Fig. 38. Wing of Ch. curvinervis . considerably curved in its first part, the following veins a little ab- breviated, not quite reaching the margin. Balteres black. Female. I possess only one immature female; according to Becker this sex is similar to the male, but sometimes paler with palpi and legs reddish yellow to reddish brown. Length about 3 to about 4 mm. In Stæger's collection there is an old, very mouldy specimen, labelled 'fuscipes Macq? Zett. det.', it is a curvinervis and it is evidently the specimen mentioned by Zetterstedt 1. c. as taken by Stæger at Copenhagen on Vs; Zetterstedt writes '??', but the spec- imen is a male. Ch. curvinervis seems to be rare in Denmark, I know only five specimens, the above mentioned old male from near Copenhagen on /s (Stæger), two males taken in Ermelund on U 1909 and '/s 1920 (the author), one male from Hillerød U 1921 (Th. Mortensen), and one immature female taken at Holte U 1916 in a fox's den (Rosenberg). Geographical distribution: — The species is otherwise known from England, Holland and Germany and, according to Brues (Journ. New York Ent. Soc. 16, 1908, 200), also from North America. 3. Ch. thoracica Meig. 1804. Meig. Klass. eur. zweifl. Ins. I, 313, 2 {Trineura). — 1823. Fall. Dipt. Suec. Phytom. 6, 3 {Trineura). — 1830. Meig. Syst. Beschr. VI, 214, 8 (Phora). — 1848. Zett. Dipt. Scand. VII, 2852, 1 {Trineura). - 1864. Schin. 7
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