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Family Pyrgotidae

Waved Light Fly - Pyrgota undata Large fly - Sphecomyiella valida Large fly - Sphecomyiella valida Waved light flies - Pyrgota undata - male - female Common Name?  - Pyrgota undata Pyrgotella chagnoni Pyrgotidae: Purgotella chagnoni - Pyrgotella chagnoni Pyrgotidae: Specomyiella valida? - Sphecomyiella
Classification
Kingdom Animalia (Animals)
Phylum Arthropoda (Arthropods)
Subphylum Hexapoda (Hexapods)
Class Insecta (Insects)
Order Diptera (Flies)
No Taxon ("Acalyptratae")
Superfamily Tephritoidea
Family Pyrgotidae
Synonyms and other taxonomic changes
reviewed in(1)
Explanation of Names
Pyrgotidae Loew 1868
Numbers
9 spp. in 5 genera in our area(2), ~350 spp. in ~60 genera total(3)
Identification
NA species have brown patterning on the wings and lack ocelli
Life Cycle
Larvae are internal parasites of adult Scarab beetles. Only a single larva develops in each beetle--killing the beetle within two weeks. The female fly is reported to insert eggs into the abdomen of the beetle while both are in flight, generally at night.(4)
Remarks
Usually found around lights at night. Very rarely seen during the day.
Works Cited
1.Synopsis of the North American Pyrgotidae (Diptera)
Steyskal G.C. 1978. Proc. ent. Soc. Wash. 80: 149-155.
2.American Insects: A Handbook of the Insects of America North of Mexico
Ross H. Arnett. 2000. CRC Press.
3.Order Diptera Linnaeus, 1758. In: Zhang Z.-Q. (ed.) Animal biodiversity: An outline of higher-level classification...
Pape T., Blagoderov V., Mostovski M.B. 2011. Zootaxa 3148: 222–229.
4.Manual of Nearctic Diptera Volume 2
Varies for each chapter; edited by J.F. McAlpine, B.V. Petersen, G.E. Shewell, H.J. Teskey, J.R. Vockeroth, D.M. Wood. 1987. Research Branch Agriculture Canada.