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TaxonomyBrowse
Info
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Subfamily Astatinae

Astata - male Unknown Fly (?) - Astata Dryudella sp. Wasp? - Astata - male I'm curious about this one, I have no clue. Any ideas? - Astata Black Wasp Cabronid or tachysphex? - Astata Hymenoptera - Astata Astata? - Astata - male Red and gray wasp - Astata - 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 (traditional Sphecidae))
Family Crabronidae (Square-headed Wasps, Sand Wasps, and Allies)
Subfamily Astatinae
Numbers
37 spp. in 3 genera in our area(1), >150 spp. in 4 genera total(2)
Identification
From Bohart & Menke(3):
Males of Astata and Dryudella can be distinguished from Diploplectron by their holoptic eyes, while male Dryudella are distinguished from male Astata by malar space longer than mid-ocellar diameter and submarginal cell 1 shorter than 2 along their posterior edges.
Females have dichoptic eyes; female Astata also have pygidial plate bordered by stout spines (absent in female Dryudella and Diploplectron) and submarginal cell 2 as long as or longer than 1 (shorter in Dryudella and Diploplectron). See key to genera in (3) to separate female Dryudella and Diploplectron.
Range
In our area, most spp. are western; a few, transcontinental(1)
Food
As far as is known, members of this group provision their larvae exclusively with Heteroptera. Nymphs and adults of the following families have been recorded: Pentatomidae, Scutelleridae, Lygaeidae, Reduviidae, Cydnidae, Alydidae, and Rhopalidae.(3)