Callirhytis quercussuttoni (Hymenoptera: Cynipidae)
Gouty Stem Gall Wasp
Knowland Park, Oakland, Alameda County, California
November 6, 2021

Image shows several stages gall dissection, exposing larvae and adult wasps. Adults and large larvae were present in this gall. The blue arrow points to a larva. The red arrows point to an adult. Host is Quercus agrifolia (coast live oak).