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Photo#832476
Andricus crystallinus ? - Feron crystallinum

Andricus crystallinus ? - Feron crystallinum
1.7 mi. NNW. of Antelope Fire Control Station, Willow Springs, San Benito County, California, USA
August 27, 2013
Size: 9mm high
Found these on underside of leaf of Quercus douglasii, I am guessing that the smooth individuals are younger examples of the fuzzy individuals. These were on a large Blue Oak just above our spring. 36.66826°N, 121.03441°W; 2527 ft. elevation. I think they are formed by Andricus crystallinus, based mainly on (1).

Moved
Moved from ID Request.

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