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For Insects, Spiders & Their Kin
For the United States & Canada
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Genus Copestylum

big black fly, facial view - Copestylum mexicanum Copestylum - Copestylum satur - female Brittlebush Fly - Copestylum apiciferum Any chance for species ID on this Copestylum? - Copestylum - male White-faced Fly - Copestylum Copestylum marginatum Is this Copestylum caudatum? - Copestylum - female Syrphid  - Copestylum sexmaculatum? - Copestylum sexmaculatum - female
Kingdom Animalia (Animals)
Phylum Arthropoda (Arthropods)
Subphylum Hexapoda (Hexapods)
Class Insecta (Insects)
Order Diptera (Flies)
No Taxon ("Aschiza")
Family Syrphidae (Syrphid Flies)
Subfamily Eristalinae
Tribe Volucellini
Genus Copestylum
Explanation of Names
Copestylum Macquart 1846
35 spp. in 3 subgenera in our area(1), >300 total
6-16 mm
New World, mostly tropical; in our area, across the US + sw. Canada(1); 4 spp. introduced to Hawaii and the Canary Islands
larvae develop in various kinds of decaying organic matter (saguaro, rotting banana stumps, paw-paw, exudates from Timbo, etc.) and also found in the water-filled bracts of Heliconia spp. (Marcos-García & Pérez-Bañón 2001)
Larvae feed on decaying matter, mostly rotting cactus (many spp. reared from Opuntia) (Marcos-García & Pérez-Bañón 2001)
Print References
Marcos-García M.A., Pérez-Bañón C. (2001) Immature stages, morphology and feeding behavior of the saprophytic syrphids Copestylum tamaulipanum and Copestylum lentum (Diptera: Syrphidae). Eur. J. Entomol. 98: 375-385. (Full text)
Works Cited
1.Key to the genera of nearctic Syrphidae
Miranda G.F.G, Young A.D., Locke M.M., Marshall S.A., Skevington J.H., Thompson F.C. 2013. Canadian Journal of Arthropod Identification 23: 1-351.
2.Syrphidae of Ontario