Scaeva affinis
| Scaeva affinis | |
|---|---|
| |
Scientific classification 
| |
| 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.[1] The larval form feeds voraciously on aphids.[2] 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.[3] This species is believed to be migratory.[4] In 1823, Thomas Say originally described it as "tergum black with three yellow lunules on each side...inhabits Arkansa."[5] S. affinis was later combined with (and then determined to be a distinct species and was split back off from) Scaeva pyrastri.[6]
References
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