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Species Spilomyia sayi - Four-lined Hornet Fly

syrphid - Spilomyia sayi - male Unknown Fly or Wasp - Spilomyia sayi Similar to Doros? - Spilomyia sayi Wasp-like Syrphid - Spilomyia sayi - male Spilomyia sayi Spilomyia sayi Tenthredo sp.? - Spilomyia sayi A fly of some sort? - Spilomyia sayi
Kingdom Animalia (Animals)
Phylum Arthropoda (Arthropods)
Subphylum Hexapoda (Hexapods)
Class Insecta (Insects)
Order Diptera (Flies)
No Taxon ("Aschiza")
Family Syrphidae (Hover Flies)
Subfamily Eristalinae
Tribe Milesiini
Subtribe Milesiina
Genus Spilomyia
Species sayi (Four-lined Hornet Fly)
Other Common Names
Four-lined Hornet Fly(1)
Synonyms and other taxonomic changes
Spilomyia quadrifasciata(1)
Explanation of Names
Spilomyia sayi (Goot, 1964)
sayi = named after Thomas Say, a prominent American entomologist and naturalist of the early 19th century
12-16 mm
NB-AB south to NJ-KS(2)
Larvae found in the decaying heartwood of deciduous trees.

Adults most commonly found around wetlands and sometimes encountered hilltopping(1)
Jul-Oct in ON(3)
Works Cited
1.Field Guide to the Flower Flies of Northeastern North America
Jeffrey H. Skevington and Michelle M. Locke, Andrew D. Young, Kevin Moran, William J. Crins and Stephen A. Marshall. 2019. Princeton University Press.
2.Spilomyia flower flies of the New World (Diptera: Syrphidae)
Thompson F.C. 1996. Mem. Ent. Soc. Wash. 18: 261-272.
3.Syrphidae of Ontario