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Information about the 2019 BugGuide Gathering in Louisiana, July 25-27

Discussion, 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

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

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Genus Ectemnius

Which wasp, please? - Ectemnius - female Wasp - Ectemnius wasp - Ectemnius maculosus - male  Square-headed Wasp - Ectemnius decemmaculatus Id help needed - bee - Ectemnius 8035064 crabronid - Ectemnius wasp - Ectemnius Bee or Wasp - Ectemnius
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)
Tribe Crabronini
Subtribe Crabronina (Squareheads)
Genus Ectemnius
Explanation of Names
Ectemnius Dahlbom 1845
27 spp. in our area(1), >180 total(2)
key to spp. in(3)
Life Cycle
most nest in dead/rotten wood (logs, stumps) or hollow stems and stock the nests with adult flies (Grissel 2007)
Most nest in twigs or in borings in dead wood (comment by Matthias Buck)
See Also
Lestica is very similar but has a sharply impressed longitudinal groove along each inner eye margin (Matthias Buck)