Diptera danica : genera and species of flies hitherto found in Denmark . ome black hairs overhanging the densely pale-hairy with somewhat short hairs. Antennæ black,somewhat long; arista about of the length of the antennæ. Thoraxdark æneous, in front of scutellum often bluish, shining; it is clothedwith yellow hairs. Scutellum yellowish or brownish, pellucid, some-times with a little bluish tint; it has black, at the base more or lessyellow hairs. Pleura with yellow hairs. Abdomen dull black, a littleshining towards the apex; on the second segment it has a pair ofisolated, small, tra
Diptera danica : genera and species of flies hitherto found in Denmark . ome black hairs overhanging the densely pale-hairy with somewhat short hairs. Antennæ black,somewhat long; arista about of the length of the antennæ. Thoraxdark æneous, in front of scutellum often bluish, shining; it is clothedwith yellow hairs. Scutellum yellowish or brownish, pellucid, some-times with a little bluish tint; it has black, at the base more or lessyellow hairs. Pleura with yellow hairs. Abdomen dull black, a littleshining towards the apex; on the second segment it has a pair ofisolated, small, transverse, yellow spots, sometimes very small or quitewanting; on the third segment there is a broad band at the frontmargin, more or less incised behind in the middle, but generally deeply; 280 Syrphidae. the fourth segment has at the front margin a narrow band, narrowlydivided in the middle, sometimes almost not divided; both bands gowidely over the side margin. Fourth and fifth segments have yellowhind margins, the fifth also small basal corner spots. The hairs on. Fig. 119. Antennæ of S. tricinctus d, from the inside x 60. abdomen follow mainly the ground colour, but they are pale on thebasal part of second segment; at the sides they are yellow at the baseand on the bands, for the rest black. Venter black with yellow bandsat the front margins on second and third segments; it is clothed withlong, yellowish hairs. Genitalia somewhat large, black, orange, the basal half of anterior femora, and hind femora ex-cept the apex black; anterior tarsi with the three middle joints moreor less darkened and hind tarsi with the three or four last jointsblackish. The hairs on femora yellow, more or less intermingled withblack hairs and on anterior femora sometimes nearly all black; theshort hairs on tibiæ yellow, those on the hind femora mainly a little yellowish tinged. Squamulæ yellow with a dark yellowfringe. Halteres yellow or orange. Female. Frons bro
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Keywords: ., bookcentury1900, bookdecade1900, bookpublishercopenhagengecgad
