Callirhytis serricornis, formerly Andricus serricornis, the kernel flower gall wasp, is a species of hymenopteran that produces galls on oak trees in California in North America. The wasp oviposits on coast live oak and interior live oak and induces a gall shaped roughly like a bottle or vase. The gall is brown in the first generation, and red and green in the second.[1][2]
| Callirhytis serricornis | |
|---|---|
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| Callirhytis serricornis in Napa County, July 2022 | |
Scientific classification  | |
| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Arthropoda |
| Class: | Insecta |
| Order: | Hymenoptera |
| Family: | Cynipidae |
| Genus: | Callirhytis |
| Species: | C. serricornis |
| Binomial name | |
| Callirhytis serricornis (Kinsey, 1922) | |