External images For terms see Morphology of Diptera Cheilosia semifasciata has a very low facial knob, (in line with the bottom of the eyes), hairy eyes, dark legs with pale knees and dark antennae. Males have square grey dust spots each side of tergites 2 to 5.
See Schmid, U. (2000) for certain determination[1][2][3][4]
The larva is described and figured by Rotheray (1994).[5]
Distribution
Norway and Finland South to northern France. From Ireland East across mountains of Central Europe, Romania and Bulgaria.
[6][7]
Habitats
Scree slopes, cliffs and rock outcrops up to 2000m.[8] and gardens where the host plants are cultivated.
^Schmid, U. (2000). Cheilosia rhodiolae spec.nov. - Taxonomie und Ökologie einer alpinen Schwebfliege (Diptera, Syrphidae) aus der Cheilosia fasciata-Gruppe. Volucella, 5: 15-50.
^Van der Goot,V.S. (1981) De zweefvliegen van Noordwest - Europa en Europees Rusland, in het bijzonder van de Benelux. KNNV, Uitgave no.32: 275pp. Amsterdam.
^Stubbs, Alan E. & Falk, Steven J. (1983). British Hoverflies: An Illustrated Identification Guide (2nd (revised) ed.). British Entomological & Natural History Society. p. 271, xvpp. ISBN0-9502891-3-2.
^Rotheray G., 1993 Colour Guide to Hoverfly Larvae Diptera, Syrphidae in Britain and Europe Dipterists Forum pdfArchived 2019-04-03 at the Wayback Machine
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