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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

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Subfamily Crabroninae - Square-headed Wasps

Oxybelus ?? - Oxybelus Another silver and black bee - Tachytes - male Bee - Ectemnius continuus Crabro advena - Crabro - female Wasp - Miscophus Unknown Wasp - Crabro - male Wasp 460A 6651 & 6654 - Ectemnius continuus Gold-marked Tachytes - Tachytes - female
Classification
Kingdom Animalia (Animals)
Phylum Arthropoda (Arthropods)
Subphylum Hexapoda (Hexapods)
Class Insecta (Insects)
Order Hymenoptera (Ants, Bees, Wasps and Sawflies)
No Taxon (Aculeata - Ants, Bees and Stinging Wasps)
No Taxon (Apoid Wasps (Apoidea)- traditional Sphecidae)
Family Crabronidae
Subfamily Crabroninae (Square-headed Wasps)
Numbers
~520 spp. in 31 genera of 6 tribes in our area(1), ~4,660 spp. in >100 genera of 7 tribes worldwide(2)
Size
body 6-20 mm
Identification
Large and quadrate head, with the inner margins of the eyes straight and converging ventrally. Forewing has only one submarginal cell.
Habitat
Adults commonly found on flowers
Remarks
Some nest in hollow stems or in abandoned galleries in wood, others burrow in the ground. Prey is mostly flies, but some utilize other insects.