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

Genus Callirhytis

Mystery Gall? - Callirhytis Live Oak Gallfly - Callirhytis quercuspomiformis gall on Oak - Callirhytis cornigera Galls - Callirhytis quercuspunctata Insect Gall - Callirhytis seminator Galls - Callirhytis quercusbatatoides St. Andrews stem galls on Quercus nigra SA_G77 2016 2 - Callirhytis difficilis plush gall - Callirhytis furva
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 Cynipoidea
Family Cynipidae (Gall Wasps)
Tribe Cynipini
Genus Callirhytis
Explanation of Names
Author: Förster 1869
Nearctica lists 105 species
Life Cycle
They have a complicated life cycle with agamic and sexual generations and with different galls in different parts of the plant (leaves vs. stems). It may take three years to complete the whole cycle. In most cases very little is known.1
Internet References
"Callirhytis quercusclaviger (Ashmead) and Callirhytis cornigera (Osten Sacken) " from the University of Florida (HTML version or PDF document)