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Genus Orthonevra

Fly - Orthonevra nitida Orthonevra pair - Orthonevra nitida - male - female friendly fly - Orthonevra fly - Orthonevra nitida Diptera  Syrphidae - Orthonevra nitida - male Fly attracted to black light - Orthonevra nitida - female MN Sep - Orthonevra nitida - male MN Oct - Orthonevra nitida - male
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 Brachyopini
Subtribe Brachyopina
Genus Orthonevra
Synonyms and other taxonomic changes
Sometimes treated as a subgenus of Chrysogaster
Explanation of Names
Orthonevra Macquart 1829.
Greek ortho straight, upright + (misspelling or alternate form of?) neura nerve, cord (1).
16 spp. in our area(2)
4.5-7 mm
eyes usually with dark line[s], in some species look as though scribbled on with a pen
Widespread from so. Canada to the tropics.
pictipennis group (Sedman 1966):
O. pictipennis: USA and southern Canada east of Rocky Mountains
O. pulchella: Canada and northern USA
O. weemsi: Northeast
O. anniae: Northern USA and southern Canada east of Rocky Mountains
bellula group (Sedman 1964):
O. bellula: Mountains of West
O. nitidula: Southern Arizona, Texas, and New Mexico, possibly Mexico
O. sonorensis: Southern Arizona, New Mexico, possibly Mexico
O. flukei: California and Nevada south to tropical Mexico
O. nitida: East of Great Plains, north to Ontario and Quebec
Of the species in the guide, O. nitida, O. bellula, and O. flukei are in the O. bellula species group which can be identified by presence of both vertical and horizontal lines in the eye. O. pulchella is in the O. pictipennis species group which has only a horizontal line.
Print References
Sedman Y.S. (1964) The Chrysogaster (Orthonevra) bellula species group in North America. Proc. Ent. Soc. Wash. 66: 169 (Full text)
Sedman Y.S. (1966) The Chrysogaster (Orthonevra) pictipennis group in North America (Diptera: Syrphidae). Proc. Ent. Soc. Wash. 68: 185-194 (Full text)
Internet References
Works Cited
1.Dictionary of Word Roots and Combining Forms
Donald J. Borror. 1960. Mayfield Publishing Company.
2.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. Can. J. Arthropod Identification 23: 1-351.