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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

Photos of insects and people from the 2019 gathering in Louisiana, July 25-27

Photos of insects and people from the 2018 gathering in Virginia, July 27-29

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


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TaxonomyBrowse
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Genus Ectemnius

5013057 - Ectemnius Wasp - Ectemnius rufipes - male Square-headed Wasp - Ectemnius cephalotes Square-headed Wasp (Ectemnius) - Ectemnius continuus Ectemnius cephalotes ? - Ectemnius maculosus Crabronidae Ectemnius continuus Female  - Ectemnius continuus - female Small wasp/bee? - Ectemnius Wasp - Ectemnius
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 (traditional Sphecidae))
Family Crabronidae (Square-headed Wasps, Sand Wasps, and Allies)
Subfamily Crabroninae (Square-headed Wasps)
Tribe Crabronini
Subtribe Crabronina
Genus Ectemnius
Explanation of Names
Ectemnius Dahlbom 1845
Numbers
27 spp. in our area(1), >180 total(2)
Identification
Distinguishing Ectemnius from similar genera (Crabro, Crossecerus, and Lestica)(3):
Recurrent vein ending in distal third of submarginal cell
Ocelli forming a low triangle
Lacking orbital foveae (sharp groove along inner eye margin)
Upper frons evenly punctate
key to spp. in (3)
Range
Widespread in the US.
Life Cycle
most nest in dead/rotten wood (logs, stumps) or hollow stems and stock the nests with adult flies (Grissel 2007)
Internet References