Chrysotoxum festivum is a species of hoverfly.
Identification External images For terms see Morphology of Diptera Wing length 8·25–12 mm. Wing with a small, square, dark spot. Thorax with two grey longitudinal stripes. Katepisternum normally with yellow spot. Apical antennomere shorter than antennomeres 1 and 2 together.
Keys and accounts Coe R.L. (1953) Syrphidae Coe, R.L. (1953) Diptera: Syrphidae. Handbks.ident.Br.insects, 10(1): 1-98. R.ent.Soc.London.pdf Van Veen, M. (2004) Hoverflies of Northwest Europe Van Veen, M. (2004) Hoverflies of Northwest Europe: identification keys to the Syrphidae. 256pp. KNNV Publishing, Utrecht. Van der Goot, V.S. (1981) De zweefvliegen van Noordwest - Europa en Europees Rusland, in het bijzonder van de BeneluxVan 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 USSR insects. Diptera Bei-Bienko, G.Y. & Steyskal, G.C. (1988a) Keys to the Insects of the European Part of the USSR, Volume V: Diptera and Siphonaptera, Part I. Amerind Publishing Co., New Delhi. .
Distribution Palaearctic Fennoscandia South to Iberia and the Mediterranean basin. Ireland eastwards through Europe into Greece, Turkey and European Russia then through Siberia to the Pacific coast. Japan. North India.Fauna Europaea
Biology
Habitat :Deciduous woodland clearings and open areas in scrub woodland. Grassland with scrub. Flowers visited include white umbellifers, Calluna, Chaerophyllum, Cirsium arvense, Euphorbia, Galium, Hieracium, Hypochoeris, Narthecium, Origanum, Potentilla erecta, Ranunculus, Rosa rugosa, Rubus idaeus, Sambucus nigra, Senecio, Solidago canadensis and Solidago virgaurea.de Buck, N. (1990) Bloembezoek en bestuivingsecologie van Zweefvliegen (Diptera, Syrphidae) in het bijzonder voor België. Doc.Trav. IRSNB, no.60, 1-167.
The flight period is May to September, with peaks in June and August.
References
External links Biolib