Chrysogaster virescens is a European species of hoverfly.
Description
External images For terms see Morphology of Diptera
Wing length 5·75-6·75 mm. Antennae partly red. Face twice as wide as maximum width of an eye. Wings at most tinged brown on anterior part. Pleurae not pruinose. Male face with central knob small. 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. .Coe, R.L. (1953) Diptera: Syrphidae. Handbks.ident.Br.insects, 10(1): 1-98. R.ent.Soc.London. pdf The male genitalia are figured by Maibach, A. & Goeldlin de Tiefenau (1994) .Maibach, A. & Goeldlin de Tiefenau, P. (1994) Limites génériques et caractéristiques taxonomiques de plusieurs genres de la Tribu des Chrysogasterini (Diptera: Syrphidae) III. Descriptions des stades immatures de plusieurs espèces ouest-paléarctiques. Rev.suisse Zool., 101: 369-411.
Distribution South Finland, Ireland, Britain and the Atlantic seaboard of Europe from Denmark to the Pyrenees and northern Spain. Also in Switzerland in Central Europe.Fauna EuropaeaPeck, L.V. (1988) Syrphidae. In: Soos, A. & Papp, L. (eds.) Catalogue of Palaearctic Diptera, 8: 11-230. Akad.Kiado, Budapest.
Biology Habitat: Woodland and wetland; fen carr, areas with flushes and streams in deciduous forest. Alnus Salix carr and poorly-drained scrub, streamsides in woodland. Flowers visited include white umbellifers, Filipendula, Ilex, Iris, Ranunculus. The flight period is end of April to mid July.de Buck, N. (1990) Bloembezoek en bestuivingsecologie van Zweefvliegen (Diptera, Syrphidae) in het bijzonder voor België. Doc.Trav. IRSNB, no.60, 1-167.
References