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Species Euaresta festiva

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Kingdom Animalia (Animals)
Phylum Arthropoda (Arthropods)
Subphylum Hexapoda (Hexapods)
Class Insecta (Insects)
Order Diptera (Flies)
No Taxon ("Acalyptratae")
Superfamily Tephritoidea
Family Tephritidae (Fruit Flies)
Subfamily Tephritinae
Tribe Tephritini
Genus Euaresta
Species festiva (Euaresta festiva)
Synonyms and other taxonomic changes
Euaresta festiva (Loew, 1862)

Trypeta festiva Loew, 1862
body length 4-7 mm
ground color of thorax yellow; distal hyaline spot in cell r4+5 broadly touches wing margin (see photo linked to in Internet References section below)
Idaho, Manitoba, Ontario, and Connecticut south to Colorado, Arkansas, northern Georgia
fields, meadows, streamsides where Great Ragweed grows
adults appear July through September
larvae feed on a single species: Great Ragweed (Ambrosia trifida)
Life Cycle
one generation per year; overwinters as larva in seeds of Great Ragweed; pupates in spring
Internet References
wing pattern description, distribution, biology (The Diptera Site, US Dept. of Agriculture)
description US range map and other info (Biodiversity Inventory, Great Smoky Mountains National Park)