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Photos of insects and people from the 2022 BugGuide gathering in New Mexico, July 20-24

National Moth Week was July 23-31, 2022! See moth submissions.

Photos of insects and people from the Spring 2021 gathering in Louisiana, April 28-May 2

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TaxonomyBrowse
Info
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Nerax group

Robberfly sp? - Efferia - female Robber Fly - Efferia aestuans - Efferia aestuans - female Davis Bayou robber - Efferia aestuans Mating Robber Flies - Efferia - male - female Robber Fly - Efferia aestuans - female Efferia aestuans female - Efferia aestuans - female Robber fly - Efferia aestuans - female asilidae - Efferia aestuans - female
Classification
Kingdom Animalia (Animals)
Phylum Arthropoda (Arthropods)
Subphylum Hexapoda (Hexapods)
Class Insecta (Insects)
Order Diptera (Flies)
No Taxon (Orthorrhapha)
Superfamily Asiloidea
Family Asilidae (Robber Flies)
Subfamily Asilinae
Genus Efferia
No Taxon Nerax group
Synonyms and other taxonomic changes
=Nerax Hull 1962
Numbers
13 spp. in our area, 65 total(1)
Identification
The following information is based on the modified Key to Eastern Species: (2) For info on the listed reference terms see the wing diagrams here.
1) - Furcation of third vein opposite or beyond base of second posterior cell;
18) - Posterior branch of third vein (R5) curved backward at tip, meeting the costa at or beyond apex of wing = (Nerax/aestuans group)

Examples:
Efferia aestuans
Efferia tabescens