. Fig. 119. Wing of A. brevicostalis ^. the others brown; the thick veins not strong, but relatively fme; costa about 0,40 of the wing-length, costal divisions about as 8—4—3 angle at fork not small; costal cilia short, though not very short; fourth vein slightly and evenly curved, especially in its first part. Halteres yellow, the peduncle dark or black. Female. In all respects similar to the male. Length 1—1,6 mm. A. brevicostalis is very common in Denmark all over the country in suitable localities. Wood mentions it as common on flowers of Angelica, I have taken it with the net in low herba
. Fig. 119. Wing of A. brevicostalis ^. the others brown; the thick veins not strong, but relatively fme; costa about 0,40 of the wing-length, costal divisions about as 8—4—3 angle at fork not small; costal cilia short, though not very short; fourth vein slightly and evenly curved, especially in its first part. Halteres yellow, the peduncle dark or black. Female. In all respects similar to the male. Length 1—1,6 mm. A. brevicostalis is very common in Denmark all over the country in suitable localities. Wood mentions it as common on flowers of Angelica, I have taken it with the net in low herbage in woods, often especially in grass, and also outside woods in open piaces, and once I took it on fresh, somewhat exsudating stubs of Acer; my dates are ^Vs—V9 in 1910 to 1921. Some specimens came in February and March from shells of Helix, collected in winter. Geographical distribution: — Hitherto known from Denmark, England and, according to a specimen sent from Pater Schmitz, from Holland, and also occurring in Prussia (Schmitz, Tijdschr. v. Entom. LXIV, 1921, 2). Remarks: The three species angelicae, tarsalis and brevicostalis are rather similar, but well distinguished; tarsalis is in the male easily known by the thickened front tarsi; in the female this character is also present, but to a smaller degree, but it may be known from ange- 26
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Keywords: ., bookcentury1900, bookdecade1900, bookpublishercopenhagengecgad
