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Home » Guide » Arthropods (Arthropoda) » Insects (Insecta) » Ants, Bees, Wasps and Sawflies (Hymenoptera) » Aculeata - Bees, Ants, and Stinging Wasps » Apoid Wasps (Apoidea)- traditional Sphecidae » Crabronidae » Square-headed Wasps (Crabroninae)

Subfamily Crabroninae - Square-headed Wasps

Classification · Numbers · Size · Identification · Habitat · Remarks · Works Cited
I can't even tell the Order for this one - Trypoxylon politum 7009897 Crabronid - Ectemnius sonorensis Streamside Guard - Trypoxylon - male Another fly (I think) Mostly black wasp with lighter bands - Tachytes Crabronidae - Larrini -? Square-headed Wasp - Ectemnius Vespidae? - Trypoxylon
Classification
Kingdom Animalia (Animals)
Phylum Arthropoda (Arthropods)
Class Insecta (Insects)
Order Hymenoptera (Ants, Bees, Wasps and Sawflies)
No Taxon (Aculeata - Bees, Ants, 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), >4600 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.
Works Cited
1.Apoidea (Bees; Sphecoid wasps) on discoverlife.org
2.Catalog of Sphecidae sensu lato
Contributed by Richard Leung on 8 March, 2005 - 10:58pm
Additional contributions by cotinis, Beatriz Moisset, Robin McLeod, v belov
Last updated 25 November, 2011 - 4:01pm

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