. Fig. 68. Wing of H. vitripennis $. with the costa thickened and much longer than in the male, reaching considerably beyond the middle, and 1 shorter than 2. Length 1,3—-1,6 mm. Remarks: Strobl describes (Wien. Ent. Zeitg. XI, 1892, 193) a var. albidohalterata with whitish yellow halteres. H. vitripennis is rare in Denmark, I possess only a few males and two females; Holte (Rosenberg), on Bogo south of Sealand and in Jutland at Hejls south of Kolding and at Jelling (the author); my dates of capture are ^V?—^V? in 1917 to 1921. Rosenberg bred it from a nest of Vespa vulgaris in May 1910. It is


. Fig. 68. Wing of H. vitripennis $. with the costa thickened and much longer than in the male, reaching considerably beyond the middle, and 1 shorter than 2. Length 1,3—-1,6 mm. Remarks: Strobl describes (Wien. Ent. Zeitg. XI, 1892, 193) a var. albidohalterata with whitish yellow halteres. H. vitripennis is rare in Denmark, I possess only a few males and two females; Holte (Rosenberg), on Bogo south of Sealand and in Jutland at Hejls south of Kolding and at Jelling (the author); my dates of capture are ^V?—^V? in 1917 to 1921. Rosenberg bred it from a nest of Vespa vulgaris in May 1910. It is known to develop in nests of Vespa and Bombiis, and the imagines are recorded to frequent Heracleum sphondylium and Angelica silvestris. Geographical distribution: — Europe, towards the north to Jamtland in Sweden, 7. Conicepa Meig. Small species of black colour. Frons broad, generally about twice as broad as high; there are three rows of frontal bristles, the two upper rows show four bristles each, the lower row may also have four bristles, but the outer bristle is quite small and placed near to the outer bristle of the middle row, and it may in some species be quite wanting; also the inner bristle of the lower row may be rather small in the male; one pair of small, upwards directed and diverging supraantennal bristles present, only in the male of daiici wanting. Eyes hairy. Antennae in the male of characteristic shape, the third


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Keywords: ., bookauthorlu, bookcentury1900, bookdecade1900, booksubjectdiptera