Sphecinae is a subfamily of solitary, predatory wasps in the family Sphecidae, commonly known as thread-waisted wasps. The group is well established in entomological taxonomy and is covered by standard taxonomic catalogs such as the California Academy of Sciences' catalog of Sphecidae.
Taxonomy
- Kingdom: Animalia
- Phylum: Arthropoda
- Class: Insecta
- Order: Hymenoptera
- Family: Sphecidae
- Subfamily: Sphecinae
The subfamily is divided into several tribes, including:
- Prionychini: Chilosphex (Menke, 1976), Palmodes (Kohl, 1890), Prionyx (Vander Linden, 1827)
- Sphecini: Isodontia (Patton, 1880), Sphex (Linnaeus, 1758)
- Stangeellini: Stangeella (Menke, 1962)
Some classifications also recognize additional genera or tribal groupings (e.g., Podiini and Sceliphrini under closely related arrangements), reflecting ongoing revisions in sphecid taxonomy.
Description and biology Sphecinae are characterized by a markedly slender "waist" (petiole) connecting the thorax and abdomen, giving the group its common name. They are solitary wasps that provision nests with insect prey — typically orthopterans such as crickets and katydids — which are paralyzed and used as food for their larvae. Nests are constructed in the ground, in pre-existing cavities, or in plant stems, depending on the genus.
Representative genera and species Notable members include Sphex ichneumoneus (great golden digger wasp), Sphex funerarius, and various Isodontia species that nest in twigs.
Etymology The name "Sphecinae" derives from the type genus Sphex, from the Greek sphex (σφήξ), meaning "wasp."
References
- Pulawski, Wojciech J. (25 April 2021). "Family Group Names and Classification." California Academy of Sciences.
- Bohart, R. M., and Menke, A. S. Sphecid Wasps of the World: A Generic Revision.
