Identification, Images, & Information
For Insects, Spiders & Their Kin
For the United States & Canada
Clickable Guide
Moths Butterflies Flies Caterpillars Flies Dragonflies Flies Mantids Cockroaches Bees and Wasps Walkingsticks Earwigs Ants Termites Hoppers and Kin Hoppers and Kin Beetles True Bugs Fleas Grasshoppers and Kin Ticks Spiders Scorpions Centipedes Millipedes

Fall Fund Drive

TaxonomyBrowse
Info
ImagesLinksBooksData

Genus Torymus

Chalcidoid? - Torymus - female Torymid from Diastrophus gall - Torymus solitarius - female Torymus from peach fuzz oak apple - Torymus - female Torymid from bristly, conical oak leaf gall - Torymus tubicola - female Wasp - Torymus - female Wasp - Torymus - female tiny wasp 2 - Torymus - female Wasp - Torymus - female
Classification
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 Chalcidoidea (Chalcid Wasps)
Family Torymidae
Subfamily Toryminae
Genus Torymus
Synonyms and other taxonomic changes
=Callimome Spinola 1811, Syntomapsis Förster 1856
Explanation of Names
Torymus Dalman 1820
Numbers
>120 spp. in our area, >400 spp. worldwide(1)
Food
"...90% of Torymus with known hosts are ectoparasitic upon gall-forming insects of the families Cecidomyiidae and Cynipidae. A few species are parasitic upon gall-forming Psyllidae, Eurytomidae, and Tephritidae. Single records are known of Torymus reared from eggs of Cicadidae (Nearctic) and larvae of Coleoptera, Lepidoptera, and Coccidae (Palearctic). T. varians and T. seminum are both phytophagous species, the former feeding in seeds of apple, pear, and hawthorn, and the latter in Acer seeds. T. aea and T. eurytomae have been shown to develop on the host larva as well as phytophagously in surrounding plant tissue. In almost every case known, members of Torymus feed upon host organisms concealed either in a gall or other protected plant tissue such as a stem, flower head, or fruiting body. The commonest plants upon which hosts of Torymus are found are Quercus (Fagaceae), Rosa (Rosaceae), and innumerable Compositae." (2)
Print References
Huber L.L. (1927) A taxonomic and ecological review of the north American chalcid-flies of the genus Callimome. Proceedings of the United States National Museum 70(14).(3)
Works Cited
1.Universal Chalcidoidea Database
2.A revision of western Nearctic species of Torymus Dalman (Hymenoptera: Torymidae)
Grissell, E. E. 1976. University of California Publications in Entomology.
3.A taxonomic and ecological review of the north American chalcid-flies of the genus Callimome
L. L. Huber. 1927. Proceedings of the United States National Museum, Vol. 70, Art. 14, pp. 1-114, with pls. 1-4.