They are beautiful metallic flies, with strikingly long antennae are medium-sized to rather large (wing length 9·75–15 mm.) bumblebee mimics. All the species are considered rare. Callicera larvae live in the moist rot-holes of overmature trees as saprophages.[2][3][4][5][6][7][8]Callicera have been used as bioindicators.
^Stubbs, Alan E.; Falk, Steven J. (1983). British Hoverflies: An Illustrated Identification Guide. British Entomological & Natural History Society. pp. 253, xvpp.
^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.
^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. ISBN81-205-0080-6.
^Van Veen, M. (2004) Hoverflies of Northwest Europe: identification keys to the Syrphidae. 256pp. KNNV Publishing, Utrecht.addendum
^Coe, R.L. (1953) Diptera: Syrphidae. Handbks.ident.Br.insects, 10(1): 1–98. R.ent.Soc.London. pdfArchived 4 October 2018 at the Wayback Machine
^Peck, L.V. (1988) Syrphidae. In: Soos, A. & Papp, L. (eds.) Catalogue of Palaearctic Diptera, 8: 11–230. Akad.Kiado, Budapest.
^Barkalov, A.V. "Syrphidae collection of Siberian Zoological Museum". Novosibirsk, Russia: the Institute of Animal Systematics and Ecology, Siberian Branch of the Russian Academy of Sciences. Archived from the original on 20 October 2008. Retrieved 29 July 2009.
