Diptera danica : genera and species of flies hitherto found in Denmark . Heads of P. bimaculata in 23. Male. Fig. 24. Feniale. the male, broadly separated in the female. Frons in the male small,not arched, and in both sexes conically protruding. In the femalethe frons has distinct, larger or smaller side dust spots (only wantingor almost so in quadrimaculata), and on these spots there are at theeye-margin longish, inwards directed hairs: the frons has a more orless pronounced, broad and shallow, sometimes indistinct transversedepression, bordered above by an angular line with the
Diptera danica : genera and species of flies hitherto found in Denmark . Heads of P. bimaculata in 23. Male. Fig. 24. Feniale. the male, broadly separated in the female. Frons in the male small,not arched, and in both sexes conically protruding. In the femalethe frons has distinct, larger or smaller side dust spots (only wantingor almost so in quadrimaculata), and on these spots there are at theeye-margin longish, inwards directed hairs: the frons has a more orless pronounced, broad and shallow, sometimes indistinct transversedepression, bordered above by an angular line with the top densely hairy, the facets of equal size. Antennæ inserted on theprominent frons, in or a little below the middle of the head; theyare short, the third joint somewhat quadratic or rectangular, notelongate or very slightly so, generally largest in the female; aristainserted somewhat near the base of the third joint, it is thickened in 76 Syiphidae. the basal part and has very short basal joints. The two basalantennal joints a little hairy. the third a
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Keywords: ., bookcentury1900, bookdecade1900, bookpublishercopenhagengecgad
