Warning: Use of undefined constant photo_date - assumed 'photo_date' (this will throw an Error in a future version of PHP) in /home/joyceg6/public_html/shared.inc on line 49
Callirhytis quercussuttoni (Hymenoptera: Cynipidae) Knowland Park, Oakland, Alameda County, California November 7, 2021 Old stem gall caused by gall wasps on Quercus agrifolia. The wasps have emerged, leaving exit holes.
Old stem gall caused by gall wasps on Quercus agrifolia. The wasps have emerged, leaving exit holes.