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Callirhytis congregata
Hollister, California, April 2023
Scientific classification
Domain:	Eukaryota
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. This wasp is considered locally common. 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".

References

1. "Callirhytis congregata". iNaturalist. Retrieved 2023-10-23.
2. ^ Russo, Ronald A. (2021). Plant Galls of the Western United States. Princeton University Press. p. 88. doi:10.1515/9780691213408. ISBN 978-0-691-21340-8. LCCN 2020949502. S2CID 238148746.
3. "DESCRIPTIONS OF NEW CYNIPIDOUS GALLS AND GALL-WASPS IN THE UNITED STATES NATIONAL MUSEUM by William H. Ashmead, Honorary Custodian of Hymenoptera" (PDF).

External links

• gallformers.org - Callirhytis congregata

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• v
• t
• e

• Cynipidae
• Gall-inducing insects
• Insects of the United States
• Oak galls
• Western North American coastal fauna
• Insects described in 1896
• Taxa named by William Harris Ashmead
• Hymenoptera of North America
• Apocrita stubs