Identification, Images, & Information
For Insects, Spiders & Their Kin
For the United States & Canada
acorn gall - Andricus balanella

acorn gall - Andricus balanella
SRER, Florida Canyon, Pima County, Arizona, USA
July 26, 2013
Acorn gall on Quercus emoryi, with droplets of honeydew. This gall was attached to the inside of the cap; some others on the tree were attached to the outside of the cap.

The beetle in the image is Lycus fernandezi.

See comments about the gall under this image:

Moved from Gall Wasps.