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Species Scaeva pyrastri

Scaeva pyrastri - female Hoverfly - Scaeva pyrastri - female Eupeodes Fly? - Scaeva pyrastri Syrphidae larva - Scaeva pyrastri Could this be Scaeva pyrastri  - Scaeva pyrastri syrphid fly ? - Scaeva pyrastri Scavea pyrastri ? - Scaeva pyrastri Scaeva on the East Coast? - Scaeva pyrastri - female
Classification
Kingdom Animalia (Animals)
Phylum Arthropoda (Arthropods)
Subphylum Hexapoda (Hexapods)
Class Insecta (Insects)
Order Diptera (Flies)
No Taxon ("Aschiza")
Family Syrphidae (Syrphid Flies)
Subfamily Syrphinae
Tribe Syrphini
Genus Scaeva
Species pyrastri (Scaeva pyrastri)
Explanation of Names
Scaeva pyrastri (Linnaeus 1758)
Size
11.1-15.7 mm(1)
Identification
Eyes with dense hair; upper 2/3 of male eye "with extensive area of almost uniformly enlarged facets"(1); abdomen dark, with six white, curved stripes. Larvae are light green with a white dorsal longitudinal stripe.

Usually with abdominal bands, but sometimes also in dark forms:

Range
Holarctic; in NA, western (AK-CA to AB-NM)(2)
Life Cycle
1. Larvae. 2. Puparium
Remarks
may consume over 500 aphids during its larval stages(3)
Internet References