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
Dryocosmus dubiosus (Hymenoptera: Cynipidae) Two-horned Gall Wasp Borel Park, San Mateo, San Mateo County, California April 8, 2021 Catkin gall on Quercus agrifolia (coast live oak).
Catkin gall on Quercus agrifolia (coast live oak).
