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Upcoming Events

Discussion of 2018 gathering

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 marginatus

Toxomerus marginatus ? - Toxomerus marginatus - female Toxomerus marginatus - female Toxomerus marginatus? - Toxomerus marginatus - female Milesiini? - Toxomerus marginatus - male Shortage of black on my Toxomerus - Toxomerus marginatus - male Syrphid Fly - Toxomerus marginatus - male Toxomerus - Toxomerus marginatus - male - female Hoverflies - Toxomerus marginatus - male - 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 marginatus (Toxomerus marginatus)
Synonyms and other taxonomic changes
Toxomerus marginatus (Say)
Orig. Comb: Scaeva marginata Say 1823
5-6 mm
Key to common species of Toxomerus:

larva shown at Bugg et al. (2008) (1), fig. 33
across Canada to C. Amer. (2)
variable, but mostly Apr-Nov (BG data)
Larvae prey on aphids, thrips, small caterpillars
Adult feed on a wide range of flowers - Wiki
Life Cycle

When the pupa is exposed to heat, the adults look very pale and orange, if they develop under cold conditions, they turn much darker, sometimes nearly completely black. (Comment by Martin Hauser)
very common; larvae prey on many plant pests
Males have holoptic eyes

1. Female . . . . . . . . . 2. Male
Internet References