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Holocynips hartmani
2222_3359 Photo added 2022-01-30

Holocynips hartmani (Hymenoptera: Cynipidae)
Bretz Mill area, Sierra National Forest, Fresno County, California
October 18, 2021

Multiple larval cells with gall wasp pupae were under the bark at the base of this large canyon live oak (Quercus chrysolepis). Here the bark has been cut away to expose the larval cells. One gall wasp pupa is visible.

all photos and text © Joyce Gross