Family Syrphidae Tribe Syrphini Genus Doros Order Fly | Subfamily Syrphinae Rank Species | |
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Similar Fly, Eristalis cryptarum, Callicera, Cheilosia impressa, Epistrophe melanostoma | ||
Description
External images For terms see Morphology of Diptera
The wing length is 11·25-13·25 mm. Large fly resembling a wasp.Strikingly petiolate abdomen and dark costal margin of wing.Abdomen with 3 yellow bands, thorax black with yellow bands at the sides. The male genitalia are figured by Vockeroth (1969).
Distribution
Palaearctic South Fennoscandia southwards to central Spain.Ireland east through Central and South Europe and on through Russia and the Russian Far East to the Pacific coast and Japan and South into China.
Biology
Occurs particularly in woodlands, on rotten tree-trunks, and on trunks from which sap is flowing.The habitat is Quercus and Fraxinus woodland and Corylus scrub, unimproved pastures invaded by scrub (including Rubus and Taxus). Arboreal and elusive. In open situations, adults fly along the edge of scrub, often around Rubus fruticosus thickets, on which they settle.Flowers visited include umbellifers, Chrysanthemum leucanthemum, Filipendula, Rubus. The flight period is short - from the end of May into June (July at high altitudes).The larva is believed to be an ant commensal.