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For Insects, Spiders & Their Kin
For the United States & Canada
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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 Systoechus oreas

Bee fly on Eriogonum annuum - Systoechus oreas Fly 1 (Timothy Lake) - Systoechus oreas Beefly - Systoechus oreas
Kingdom Animalia (Animals)
Phylum Arthropoda (Arthropods)
Subphylum Hexapoda (Hexapods)
Class Insecta (Insects)
Order Diptera (Flies)
No Taxon (Orthorrhapha)
Superfamily Asiloidea
Family Bombyliidae (Bee Flies)
Subfamily Bombyliinae
Tribe Bombyliini
Genus Systoechus
Species oreas (Systoechus oreas)
Synonyms and other taxonomic changes
Systoechus oreas Osten-Sacken, 1877
West Coast, Rocky Mountain region (Painter, 1962--JSTOR link).
Life Cycle
A parasitoid of grasshoppers, including, when it was extant, the Rocky Mountain Locusts, Melanoplus spretus (Howard, 1916--direct link).
Print References
Howard, L. O. (1916). The insect book : a popular account of the bees, wasps, ants, grasshoppers, flies, and other North American insects exclusive of the butterflies, moths and beetles, with full life histories, tables and bibliographies. Garden City: Doubleday. (Biodiversity Heritage Libary)