. Flg. 115. Wing of apex of the anterior femora scarcely observable; for the rest the legs short-haired, and the tibiæ without apical spurs. Wings hyaline. Veins brown; the cross-veins distant; the discai vein thin from the base to the postical cross-vein; a thin anal vein] is indicated. Halteres blackish or brown. Female. Quite similar to the male, the abdomen is pointed. Length 1,5—1,7 mm. D. assimilis seems to be very rare in Denmark, only three speci- mens are known, taken many years ago, one from Westermann's collection, labelled Copenhagen, and two from Stæger, probably take
. Flg. 115. Wing of apex of the anterior femora scarcely observable; for the rest the legs short-haired, and the tibiæ without apical spurs. Wings hyaline. Veins brown; the cross-veins distant; the discai vein thin from the base to the postical cross-vein; a thin anal vein] is indicated. Halteres blackish or brown. Female. Quite similar to the male, the abdomen is pointed. Length 1,5—1,7 mm. D. assimilis seems to be very rare in Denmark, only three speci- mens are known, taken many years ago, one from Westermann's collection, labelled Copenhagen, and two from Stæger, probably taken at Ordrup. Geographical distribution:— Northern and middle Europe down into France; towards the north to southern Sweden. — It is also recorded to occur in North America, but this seems to be erroneous, at all events the species enumerated by Melander (Trans. Amer. 17
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Keywords: ., bookcentury1900, bookdecade1900, bookpublishercopenhagengecgad
