Callirhytis carmelensis, formerly Andricus carmelensis, the mottled acorn gall wasp, is a species of hymenopteran that induces galls on the acorns of coast live oaks and interior live oaks in California in North America.

[1][2] The purple or spotted green gall forms where the acorn attaches to the tree and often prevents normal development of the nut.

[2] The gall also produces a honeydew secretion that is attractive to other insects.

[2] This wasp is generally considered uncommon.

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