Widespread and conspicuous, but generally uncommon in Maryland. Adults fly mostly June through October. Frequents deciduous forest openings and edges. Adults visit a variety of flowers. Larvae live in decaying heartwood of deciduous trees, including rot holes. (Skevington, 2019)
Description
The largest flower fly (family Syrphidae) in Maryland. Said to mimic queens of the Southern Yellowjacket (Vespula squamosa); reported size is 16.5-23.6 mm (Skevington, 2019). Emits a loud buzz, possibly the only Maryland flower fly to mimic the sound as well as the appearance of a wasp or hornet. Readily identified by the large size, buzz, and distinctive orange, black, and yellow abdominal pattern.
A Virginia Giant Hover Fly in Harford Co., Maryland (8/17/2021). Verified by Vassili Belov and Bill Dean/BugGuide.
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Media by
Dave Webb.
A Virginia Giant Hover Fly in Prince George's Co., Maryland (9/13/2012). Determined by Kelsey J.R.P. Byers/BugGuide.
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Media by
Barbara Thurlow.
Virginia Giant Hover Fly in Prince George's Co., Maryland (10/17/2021). (c) Sergei Drovetski, all rights reserved.
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Media by
Sergei Drovetski.
A Virginia Giant Hover Fly in Howard Co., Maryland (7/4/2013). Identified by Richard Orr.
Media by
Nancy Magnusson.
A Virginia Giant Hover Fly in Washington Co., Maryland (8/7/2009).
Media by
Jim Brighton.
A female Virginia Giant Hover Fly in Howard Co., Maryland (7/25/2009). Verified by Bill Dean/BugGuide.
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Media by
Sue Muller.
A Virginia Giant Hover Fly in Worcester Co., Maryland (9/13/2014). Determined by Bob Biagi and Ken Wolgemuth via BugGuide.
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Media by
Scott Housten.
A Virginia Giant Hover Fly in Caroline Co., Maryland (7/28/2018). Verified by Martin Hauser and Ken Wolgemuth via BugGuide.
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Media by
Jim Moore.
Milesia virginiensis, known generally as the yellowjacket hover fly or Virginia flower fly, is a species of hoverfly in the family Syrphidae.[6]
It measures 18–21 millimetres (0.71–0.83 in).[citation needed] It lives in forest edges and meadows. Adults are active mid-summer to early fall.[citation needed]
^ abDrury, Dru (1773). Illustrations of natural history... Vol. 1, , 4 figs., [1770.04.23]; vol. 2, vii + 90 pp., 50 pls., and index to Vols. 1-2 (4 unnumbered pages). London: sold by White, Printed for the author. pp. xxviii + 130 pp. 50 pls.
^Hausmann, J.F.L. (1799). Entomologische Bemerkungen. Braunschweig. p. 64.
^Skevington, J.H.; Locke, M.M.; Young, A.D.; Moran, K.; Crins, W.J.; Marshall, S.A (2019). Field Guide to the Flower Flies of Northeastern North America. Princeton Field Guides (First ed.). Princeton, New Jersey: Princeton University Press. p. 512. ISBN9780691189406.