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Acraspis macrocarpae
2222_1360 Photo added 2007-08-19

Acraspis macrocarpae (Hymenoptera: Cynipidae)
Cornell Plantations, Ithaca, Tompkins County, New York
July 6, 2007

Identified with the help of Kathy Schick and Cynipid Galls of the Eastern United States by Lewis H. Weld (1959). Gall is about 4mm in diameter and can occur on both sides of a leaf on secondary veins. On Quercus macrocarpa (bur oak, mossy cup oak).

all photos and text © Joyce Gross