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Discussion of 2018 gathering

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

TaxonomyBrowse
Info
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Genus Proctacanthus

robber fly- feeding on beetle - Proctacanthus brevipennis Robber Fly 2 - Proctacanthus duryi - female Robber fly - Proctacanthus Proctacanthus - Proctacanthus milbertii - male Proctacanthus milbertii or rodecki - Proctacanthus rodecki - female Asilid - Proctacanthus hinei - male robberflya71214 - Proctacanthus Asilid - Proctacanthus nearno - male
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 Proctacanthus
Other Common Names
Giant Robber Flies, Spine-tailed Robber Fly (P. arno)
Explanation of Names
Proctacanthus Macquart 1838
Numbers
17 spp. in our area (4 reach Canada), ~30 total(1)
Identification
Large robber flies with a prominent beard
Range
Canada to Brazil; in our area, throughout the US and so. Canada; 11 spp. in the east(1)
Season
P. brevipennis in NC: Apr-Jul; P. milbertii: Jul-Oct in NC, Jul-Aug in MN
Life Cycle
Eggs laid in crevices in soil. Larvae are predatory on soil insects, also said to eat roots, decaying plant matter. Larvae may require more than one year to reach maturity. Pupation in soil.
Print References
Hine J.S. (1911) Robberflies of the genera Promachus and Proctacanthus. Ann. Ent. Soc. Amer. 4(2): 153-172 (full text)
Internet References