Burnettweldia conalis (Hymenoptera: Cynipidae)
Witches' Hat Gall Wasp
Sierra National Forest, Fresno County, California
May 24, 2021

Host is Quercus garryana. Three fresh, newly-developing galls: a large one on the left, a much smaller one that's round and fuzzy in the middle, and a tiny one just pushing through the stem on the right.