Callirhytis apicalis, formerly Andricus apicalis, the trunk gall wasp, is a species of hymenopteran that induces galls on the trunks or roots of black oak group trees in California in North America.

[1][2] Newly formed galls are red or yellow, turning brown as they age.

[2] This wasp is most often associated with Quercus agrifolia (coast live oak).

[2] This wasp is generally considered uncommon.

This Apocrita-related article is a stub.