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

Family Gasteruptiidae - Carrot Wasps

Wasp - Gasteruption - female Ichneumon - Gasteruption - female Gasteruption - female wasp - Gasteruption - female Neat Wasp - Gasteruption - male Thread-waisted Wasp - Gasteruption Ichneumon sp? - Gasteruption Oregon gasteruption - Gasteruption - female
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 Gasteruptiidae (Carrot Wasps)
15 spp. in a single genus in our area(1), 1500-2000 spp. worldwide (Jennings & Austin 2002), of which ~500 are described (Jennings & Deans 2004)
13-40 mm
Abdomen slender, very long, and attached to thorax on upper (dorsal) side. Hind tibia expanded. Ovipositor very long. Head is set on a "neck", differentiating from ichneumons.(2)
In our area, more diverse in the north
Larvae are predators or predators-inquilines (consume larval food, not the larvae) of other Hymenoptera that nest in twigs and in wood (Jennings & Deans 2004)
Adults feed at flowers, especially on Apiaceae(3)
Life Cycle
Third instar larvae spin cocoons and overwinter, pupate in spring
Print References
Works Cited
1.American Insects: A Handbook of the Insects of America North of Mexico
Ross H. Arnett. 2000. CRC Press.
2.A Field Guide to Insects
Richard E. White, Donald J. Borror, Roger Tory Peterson. 1998. Houghton Mifflin Co.
3.The Nearctic species of Gasteruptionidae (Hymenoptera)
Townes H. 1950. Proc. U.S. Nat. Mus. 100(3259): 85-145.
4.Review of the Gasteruptiidae (Hymenoptera) of Eastern North America
David R. Smith. 1996. Proceedings of the Entomological Society of Washington, 98:491-499.