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Species Andricus quercuscalifornicus - California Gall Wasp

which gall is this? - Andricus quercuscalifornicus Oak Apples on Scrub Oak, probably Quercus acutidens - Andricus quercuscalifornicus Gall wasp - Andricus quercuscalifornicus Wasp - Andricus quercuscalifornicus Wasp - Andricus quercuscalifornicus Gall - Andricus quercuscalifornicus Andricus quercuscalifornicus Wasp removed from its chamber - Andricus quercuscalifornicus - female
Classification
Kingdom Animalia (Animals)
Phylum Arthropoda (Arthropods)
Subphylum Hexapoda (Hexapods)
Class Insecta (Insects)
Order Hymenoptera (Ants, Bees, Wasps and Sawflies)
No Taxon ("Parasitica" - Parasitoid Wasps)
Superfamily Cynipoidea
Family Cynipidae (Gall Wasps)
Tribe Cynipini (Oak Gall Wasps)
Genus Andricus
Species quercuscalifornicus (California Gall Wasp)
Synonyms and other taxonomic changes
Andricus californicus
Size
Galls can be up to 8 by 12 cm. Adult wasps are among the largest cynipids, at around 5mm.
Range
Southern Washington through Oregon and California to northern Mexico.
Food
Host plants are white oaks.
Life Cycle
Females lay eggs on stems. After the eggs hatch, galls develop around the larvae, which grow inside the galls while feeding on the gall material. Only parthenogenetic females are known for this species.
Remarks
Many other insects, especially other wasp species, are parasites, inquilines, and hyperparasites of this wasp.