Identification, Images, & Information
For Insects, Spiders & Their Kin
For the United States & Canada
Clickable Guide
Moths Butterflies Flies Caterpillars Flies Dragonflies Flies Mantids Cockroaches Bees and Wasps Walkingsticks Earwigs Ants Termites Hoppers and Kin Hoppers and Kin Beetles True Bugs Fleas Grasshoppers and Kin Ticks Spiders Scorpions Centipedes Millipedes

Upcoming Events

BugGuide is a National Moth Week Partner. How to add your National Moth Week 2021 photos. July 17-25.

Photos of insects and people from the Spring 2021 gathering in Louisiana, April 28-May 2

National Moth Week 2020 photos of insects and people.

Photos of insects and people from the 2019 BugGuide Gathering in Louisiana, July 25-27

Discussion, insects and people from the 2018 gathering in Virginia, July 27-29

Photos of insects and people from the 2015 gathering in Wisconsin, July 10-12

Photos of insects and people from the 2014 gathering in Virginia, June 4-7.

Photos of insects and people from the 2013 gathering in Arizona, July 25-28

Previous events

cynipid - Andricus quercuslanigera

cynipid - Andricus quercuslanigera
Manteca, San Joaquin County, California, USA
Size: 1.5-2mm
Emerged at my house on February 1, 2008, from galls collected in November 2007. The galls were on Quercus virginiana, an oak not native to California and planted in a Manteca park. See this set of gall/leaf images.

Identified using Weld (1) and the help of Kathy Schick. Also, Kathy and some cynipid folks from Europe found more non-native Quercus virginiana trees on the San Joaquin Delta College campus (same county as these, different town) with the same galls!

Images of this individual: tag all
cynipid - Andricus quercuslanigera cynipid - Andricus quercuslanigera

These galls are also in Los Angeles County
I am searching trees in Orange County, too.

LA County
Thanks James. I edited my web site to include LA County as a place it's been seen in CA. I assume the trees you saw these on are also Quercus virginiana?

Moved from Andricus laniger.
Current name is Andricus quercuslanigera, per Kathy Schick.

What a Great (& Patiently Developed) Story!
From the initial discovery of the galls by Beth Sands, through the notice and further work of Joyce, and the intermediate collaboration of the visiting cynipid experts, to the final successful rearing, emergence, and eventual ID of the wasp.

A testament to the unique potential and promise of BugGuide and it's community. Way to go Joyce and Beth! :-)

Comment viewing options
Select your preferred way to display the comments and click 'Save settings' to activate your changes.