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Asphondylia sp.
2222_2358 Photo added 2012-10-13

Asphondylia sp. (Diptera: Cecidomyiidae)
Vein Gall Midge
Angelo Coast Range Reserve, Mendocino County, California
June 16, 2012

Leaf gall on ceanothus (Ceanothus sp.), caused by a midge. A few orange larvae are partially visible through the slit in the gall. Slits in these galls are normal on the dorsal sides of the leaves.

all photos and text © Joyce Gross