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Upcoming Events

2018 BugGuide Gathering in Virginia July 27-29: Registration and Discussion

Photos of insects and people from the 2015 gathering in Wisconsin, July 10-12

Photos of insects and people from the 2014 gathering in Virginia, June 4-7.

Photos of insects and people from the 2013 gathering in Arizona, July 25-28

Photos of insects and people from the 2012 gathering in Alabama

Photos of insects and people from the 2011 gathering in Iowa

Photos from the 2010 Workshop in Grinnell, Iowa

Photos from the 2009 gathering in Washington


Species Efferia benedicti

Robber Fly - Efferia benedicti - male Robber fly - Efferia benedicti Robber fly - Efferia benedicti - male Robber Fly - Efferia benedicti - male Efferia benedicti - female Efferia benedicti - male
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 (Pogonias group)
Species benedicti (Efferia benedicti)
Synonyms and other taxonomic changes
Pogonioefferia benedicti (Bromley 1940)
"The very short bristles on the front half of the top of the thorax, the gray body and the male's silver-white abdomen with white-parted hairs is diagnostic in the northern part of its range (BC and Washington), where no other Efferia species looks like it." -- Rob Cannings
w. NA (BC-CA to ID-UT-AZ)(1)