The larvae of C. ranunculi are associated with rotting deciduous wood.[a] Adults are remarkable bumblebee mimics and are usually found in woodland in springtime visiting flowers such as sallow to feed.[6][7]
Description
For terms see Morphology of Diptera Large (wing length 11·25–14mm.) bumblebee mimic. Thorax and abdomen with long, dense hairs. Hairs black on thorax and basal part of abdomen red or yellowish on tip of abdomen. Scutellar hairs may be pale yellow or brownish. Hind femora considerably thickened, especially in males. Hind tibiae sickle-shaped.[8][9][10][11]
Distribution
It has a Palaearctic distribution, including southern Norway and Sweden south to central Spain, and from Ireland eastwards through central Europe into European parts of Russia.[12][13]
↑ Rotheray G., 1993 Colour Guide to Hoverfly Larvae Diptera, Syrphidae in Britain and Europe Dipterists Forum pdfArchived 2019-04-03 at the Wayback Machine
↑ Van Veen, M. (2004) Hoverflies of Northwest Europe: identification keys to the Syrphidae. 256pp. KNNV Publishing, Utrecht.addendum
↑ 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.
↑ Bei-Bienko, G.Y. & Steyskal, G.C. (1988) Keys to the Insects of the European Part of the USSR, Volume V: Diptera and Siphonaptera, Part I. Amerind Publishing Co., New Delhi. ISBN81-205-0080-6.
↑ Coe, R.L. (1953) Diptera: Syrphidae. Handbks.ident.Br.insects, 10(1): 1-98. R.ent.Soc.London. pdfArchived 2018-10-04 at the Wayback Machine
↑ de Buck, N. (1990) Bloembezoek en bestuivingsecologie van Zweefvliegen (Diptera, Syrphidae) in het bijzonder voor België. Doc.Trav. IRSNB, no.60, 1-167.
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