The pupal case of the Nearctic robber fly, Efferia snowi (Hine, 1919), is described, illustrated, and compared with the pupal cases of five other Nearctic species. A key is provided to the known pupal cases of Nearctic Efferia species.
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1 October 2014
The Pupal Case of a Nearctic Robber Fly, Efferia snowi (Hine, 1919) (Diptera: Asilidae)
D. Steve Dennis,
Jeffrey K. Barnes
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Asilinae
Asiloidea
Brachycera
Immature Diptera
Insecta