Diptera danica : genera and species of flies hitherto found in Denmark . rather like cinctellus but is smaller, especiallyshorter. Male. Vertex more elongate than in cinctellus and frons andepistoma narrower, less than one third of the breadth of the head,the central knob not elongate as in cinctellus. Frons either quiteyellow, or it has a black lunule, tridentate in front, above the antennæ,but this lunule has an orange lunule beneath not found in cinctellus;the frons may also be greyish pruinose above; epistoma yellow, yel-lowish white pruinose, the knob bare; the epistoma may be more orless
Diptera danica : genera and species of flies hitherto found in Denmark . rather like cinctellus but is smaller, especiallyshorter. Male. Vertex more elongate than in cinctellus and frons andepistoma narrower, less than one third of the breadth of the head,the central knob not elongate as in cinctellus. Frons either quiteyellow, or it has a black lunule, tridentate in front, above the antennæ,but this lunule has an orange lunule beneath not found in cinctellus;the frons may also be greyish pruinose above; epistoma yellow, yel-lowish white pruinose, the knob bare; the epistoma may be more orless darkened about the mouth edge and on the lower lateral yellow or grey and in accordance with the narrow epistoma Syrphus. 321 rather narrow, much narrower than in cinctellus. Vertex and fronswith the hairs varying from yellow to black; epistoma with the hairsyellow. or more or less black at the sides. Occiput whitish greypruinose, the hairs white below, yellow upwards and there are gener-ally no black hairs. Eyes bare. Antennæ short, yellow to somewhat. Fig. 127. Anlenna of S. cinctus (S, from the inside. X 60. brownish, and sometimes the basal joints blackish; third joint short,almost circular; arista shorter than in cinctellus, as long as the antennæ,apparently bare. Thorax æneous or more or less bright brass-coloured,sometimes somewhat greenish; it is brightly shining; in pale specimensit is distinctly yellowish at the sides; the præsutural depression notpruinose; the thorax is clothed with yellow or reddish yellow hairs,longest behind. Scutellum yellow, sometimes rather dark, a littleæneous, with long, yellow hairs, in dark specimens sometimes a fewblack intermingled. Pleura with yellow hairs. Abdomen narrow,parallel-sided but not specially long; it is generally narrower thanthorax, but sometimes as broad or slightly broader; it is duU blackwith the first segment and the apex shining. The yellow markingssimilar to those in cinctellus^ but the bands genera
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