Host California wild grape
5-mm green leaf gall on Quercus douglasii leaf, collected, maybe E. trichophila?
On a valley oak (Quercus lobata) leaf; tree was in the Angeles National Forest, along the Templin Highway
Another new organism--corrections welcomed!
On Mountain Mahogany - could be a non-gall making these leaves curl.
Two of them and neither stopped long enough for me to snap a photo but their coloration is so distinctive.
Gall (?) on Keckiella antirrhinoides var. antirrhinoides
Are the white stringy things in pic 2 lerp psyllids....?