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


Family Trigonalidae

Unidentified Crabronidae...or potter wasp? - Taeniogonalos gundlachii wasp - Taeniogonalos gundlachii wasp - Taeniogonalos gundlachii wasp - Taeniogonalos gundlachii wasp - Taeniogonalos gundlachii  Taeniogonalos? - Taeniogonalos gundlachii - female Wasp 89 - Orthogonalys pulchella Hymenoptera - Orthogonalys pulchella
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 Trigonaloidea
Family Trigonalidae
Explanation of Names
Trigonalidae Cresson 1887
5 spp. in 4 genera in our area(1)(2) (incl. a recently described species of Orthogonalys), >90 spp. in 16 genera worldwide[Cite: 1028566,53]
Usually brightly colored and stout. Antennae very long and with many segments.
Parasites of social vespids or of the parasites of caterpillars
Life Cycle
Females of many species lay their minute eggs on the edge of leaves. The eggs have to be consumed by the host. The larvae later on attacks the parasites of the host, so they are hyperparasites.
Internet References
Taxon page (D. Cameron)
Works Cited
1.American Insects: A Handbook of the Insects of America North of Mexico
Ross H. Arnett. 2000. CRC Press.
2.Borror and DeLong's Introduction to the Study of Insects
Norman F. Johnson, Charles A. Triplehorn. 2004. Brooks Cole.