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For the United States & Canada
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Species Toxomerus politus

Unidentified Insect 93 - Toxomerus politus Flower Fly - Toxomerus politus - female Syrphid Fly - Toxomerus politus Syrphid Fly  - Toxomerus politus Fly sp. ? - Toxomerus politus Toxomerus politus Toxomerus politus? - Toxomerus politus Bird Hover Fly? - Toxomerus politus
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 Toxomerini
Genus Toxomerus
Species politus (Toxomerus politus)
Other Common Names
Corn-feeding Syrphid Fly
Explanation of Names
Toxomerus politus (Say 1823)
7-9 mm
scutellum mostly yellow; margin of abdomen with alternating black and yellow markings; dorsal surface of abdomen with distinctive pattern
so. Canada to Argentina; West Indies(2)
Aug-Sep in n. US & ON(3)
Corn pollen, and pollen of other Poaceae, such as Sorghum. (Studia Dipterologica. Pollenivory in larval and adult flower flies: pollen availability and visitation rate by Toxomerus politus Say (Diptera: Syrphidae) on sorghum Sorghum bicolor (L.) Moench)
much less common than T. marginatus or T. geminatus
Larvae found in masses on corn tassels. Feed on the pollen. EoL
Internet References