Maple Bladder Gall Mite

Vasates quadripedes

Vasates quadripedes, the maple bladder-gall mite, is an eriophyid mite in the genus Vasates, which causes galls on the leaves of silver maple, red maple (A. rubrum), and sugar maple (A. saccharum). The gall is rounded, sometimes elongate, and has a short, thin neck. Typically, galls are 2–3 millimetres (0.079–0.118 in) in diameter, and may be numerous on the upper surfaces of leaves. They have an opening in the lower surface. At first they are yellowish-green or bright red, later they become dark red and black.

Scientific name

Vasates quadripedes

Family

Eriophyidae