Leaf edge gall; edge inrolled involving little more than the teeth.
Variable in length from .5-2 cm. or longer, 1 mm.-2 mm. thick. Outer
surface of affected area finely roughened; color of under side of the
leaf. Thompson states that mites live within the fold. His report is
the first one on this gall. Species of hickory on which specimens were
found not determined.
Thompson, Illus. Cat. Am. Ins. Galls. 1915. p. 57, pl. 10, Fig. 260.