Identification, Images, & Information
For Insects, Spiders & Their Kin
For the United States & Canada
Clickable Guide
Moths Butterflies Flies Caterpillars Flies Dragonflies Flies Mantids Cockroaches Bees and Wasps Walkingsticks Earwigs Ants Termites Hoppers and Kin Hoppers and Kin Beetles True Bugs Fleas Grasshoppers and Kin Ticks Spiders Scorpions Centipedes Millipedes

Upcoming Events

Discussion, insects and people from the 2018 BugGuide Gathering in Virginia, July 27-29

Photos of insects and people from the 2015 gathering in Wisconsin, July 10-12

Photos of insects and people from the 2014 gathering in Virginia, June 4-7.

Photos of insects and people from the 2013 gathering in Arizona, July 25-28

Photos of insects and people from the 2012 gathering in Alabama

Photos of insects and people from the 2011 gathering in Iowa

Photos from the 2010 Workshop in Grinnell, Iowa

Photos from the 2009 gathering in Washington


Species Toxomerus politus

Fly?? - Toxomerus politus Toxomerus politus Syrphid fly? - Toxomerus politus Syrphid Fly - Toxomerus politus Toxomerus politus? - Toxomerus politus Toxomerus politus  - Toxomerus politus Toxomerus politus Toxomerus politus - female
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