Identification, Images, & Information
For Insects, Spiders & Their Kin
For the United States & Canada
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Family Aulacidae

Pristaulacus Pristaulacus? - Pristaulacus niger - female Ichneumon? - Pristaulacus rufitarsis - female Parasitic Wasp - Pristaulacus foxleei - female Parasitic Wasp - Pristaulacus foxleei - female Aulacid Wasp  - Pristaulacus fasciatus - female What is this bug? (one more image) - Pristaulacus Pristaulacus
Kingdom Animalia (Animals)
Phylum Arthropoda (Arthropods)
Subphylum Hexapoda (Hexapods)
Class Insecta (Insects)
Order Hymenoptera (Ants, Bees, Wasps and Sawflies)
No Taxon ("Parasitica" (parasitic Apocrita))
Superfamily Evanioidea (Aulacids, Ensigns, and Gasteruptiids)
Family Aulacidae
~30 spp. in 2 genera in our area(1), ~170 described spp. in 3 genera worldwide + about as many undescribed(2)
Resemble Gasteruptiidae, but our spp. are usually black with reddish abdomen, longer antennae, and two recurring veins in the front wing
most of the world, more diverse in the tropics(2)
Adults usually found around logs where hosts occur
endoparasitoids of the wood-boring larvae of beetles (of several families, but mostly longhorns) and Xiphydria wood wasps(2)
Frequently mistaken for ichneumon wasps as they often frequent dead standing trees, logs, woodpiles. Note "neck" between head and thorax and the high attachment point of the metasoma
Print References
Smith, A.S. 2008. Aulacidae of the southwestern United States, Mexico, and Central America (Hymenoptera). Beitrage zur Entomologie 58: 267-355.
Internet References
Works Cited
1.World catalog of the family Aulacidae (Hymenoptera)
Smith D.R. 2001. Contributions on Entomology, International 4: 263-319.
2.Aulacidae, by J.T. Jennings & A.R. Deans (in The Tree of Life Web Project)