Identification, Images, & Information
For Insects, Spiders & Their Kin
For the United States & Canada
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Fall Fund Drive


Species Pyrgota undata - Waved Light Fly

Waved Light Fly - Pyrgota undata Waved Light Fly - Pyrgota undata diptera - Pyrgota undata Pyrgota undata Pyrgota undata Wasp / fly? - Pyrgota undata Fly?!  This thing is huge! - Pyrgota undata Brown Wasp Mimic - Pyrgota undata
Kingdom Animalia (Animals)
Phylum Arthropoda (Arthropods)
Subphylum Hexapoda (Hexapods)
Class Insecta (Insects)
Order Diptera (Flies)
No Taxon ("Acalyptratae")
Superfamily Tephritoidea
Family Pyrgotidae
Genus Pyrgota
Species undata (Waved Light Fly)
Explanation of Names
Pyrgota undata Wiedemann 1830
undata = 'waved'
12-18 mm
Most widespread eastern member of this genus. Large (18 mm), dark, waved edge to forewing.
e NA
Life Cycle
Female lights on a feeding May beetle, causing it to take flight, then oviposits into beetle's back while soft parts are exposed. Flies usually attack female hosts only and may pursue them under lights. Larva takes ~14 days to kill host, consumes entire interior, pupates inside host and emerges following spring(1)
See Also
- Range: sw US
Diacrita (Ulidiidae ยป Otitinae)
Works Cited
1.The Common Insects of North America
Lester A. Swan, Charles S. Papp. 1972. Harper & Row.