| Callirhytis congregata | |
|---|---|
 | |
| Hollister, California, April 2023 | |
Scientific classification  | |
| Kingdom: | Animalia |
| Phylum: | Arthropoda |
| Class: | Insecta |
| Order: | Hymenoptera |
| Family: | Cynipidae |
| Genus: | Callirhytis |
| Species: | C. congregata |
| Binomial name | |
| Callirhytis congregata (Ashmead, 1896) | |
| Synonyms | |
Andricus congregatus | |
Callirhytis congregata, formerly Andricus congregata, the sausage flower gall wasp, is a species of hymenopteran that induces galls on the catkins of coast live oaks, interior live oaks, and canyon live oaks in California in North America. [1] [2] This wasp is considered locally common. [2] William Harris Ashmead described Andricus congregatus as producing a gall like a "rugose, yellowish brown woody swelling, containing numerous cells growing apparently from the extreme tips of very slender twigs of Quercus chrysolepis , the gall appearing to have a long peduncle". [3]
