| Scaeva affinis | |
|---|---|
| |
Scientific classification 
| |
| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Arthropoda |
| Class: | Insecta |
| Order: | Diptera |
| Family: | Syrphidae |
| Subfamily: | Syrphinae |
| Tribe: | Syrphini |
| Genus: | Scaeva |
| Species: | S. affinis |
| Binomial name | |
| Scaeva affinis (Say, 1823) | |
Scaeva affinis, commonly known as the white-bowed smoothwing, is a species of hoverfly found in western North America. The larval form feeds voraciously on aphids. Scaeva affinis is the only Scaeva likely to be encountered in the Nearctic realm, where it is common in the west and rare in the east. This species is believed to be migratory. In 1823, Thomas Say originally described it as "tergum black with three yellow lunules on each side...inhabits Arkansa." S. affinis was later combined with (and then determined to be a distinct species and was split back off from) Scaeva pyrastri.
References
- "White-bowed Smoothwing (Scaeva affinis)". iNaturalist. Retrieved 2023-10-27.
- "Species Scaeva affinis". bugguide.net. Retrieved 2023-10-28.
- Skevington, Jeffrey H.; Locke, Michelle M.; Young, Andrew D.; Moran, Kevin; Crins, William J.; Marshall, Stephen A. (2019-05-14). Field Guide to the Flower Flies of Northeastern North America. Princeton University Press. p. 418. ISBN 978-0-691-19251-2.
- "Insect Migrations". Royal Ontario Museum. Retrieved 2023-10-28.
- "American entomology. A description of the insects of North America, Say, Thomas, 1787-1834., Ord, George, 1781-1866, Le Conte, John Lawrence, ed. 1825-1883". Making of America (University of Michigan).
- "Field Guide to the Flower Flies of Northeastern North America" (PDF).
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