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For the United States & Canada
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Discussion, insects and people from the 2018 BugGuide 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.

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

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Genus Tachytes

Green eyed wasp? - Tachytes Bee or Wasp? - Tachytes - male unknown bee - Tachytes - female Orange and brown wasp - Tachytes distinctus - female Diptera? - Tachytes crassus - female Parasitic wasp? - Tachytes distinctus - female Tachytes - male Possible Sphex texanus? - Tachytes guatemalensis
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 Larrini
Subtribe Gastrosericina
Genus Tachytes
Explanation of Names
Tachytes Panzer 1806
'fast one'
34 spp. in our area(1), ~300 worldwide(2)
7-19 mm(3)
Antennae, black. Legs and wings, tawny color. Short, golden hairs on the thorax and head. Determining sex may be critical to identification.
Keying info to be found here:

Some species have very dark eyes:

Some species have males with slightly modified antennae segments:
Basal: ♂ Apical: ♂
Grasshoppers, katydids
Life Cycle
Nests in sand
See Also
Some other green-eyed wasps, e.g. Larra, look similar.
Many Tachysphex spp. also look similar, but are generally smaller, with a pointy abdomen, and no pygidial plate.
Internet References
~ DNA verified specimens (BOLDSYSTEMS website)
~ Hilltoping behavior: Alcock (2007)