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For Insects, Spiders & Their Kin
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Species Exoprosopa butleri

Fly 9 - Exoprosopa butleri Exoprosopa - Exoprosopa butleri Exoprosopa - Exoprosopa butleri Exoprosopa  - Exoprosopa butleri Exoprosopa - Exoprosopa butleri Bee fly - Exoprosopa butleri Bee fly - Exoprosopa butleri Bee Fly - Exoprosopa butleri
Classification
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 Anthracinae
Tribe Exoprosopini
Genus Exoprosopa
Species butleri (Exoprosopa butleri)
Synonyms and other taxonomic changes
Exoprosopa butleri Johnson and Johnson, 1959
Remarks
The R5 cell is closed and stalked, not open to the wing margin. Only a half dozen or so other US species have this feature. The white post-collar strip is the key. (Andy Calderwood)