Disholcaspis washingtonensis Burnettweldia washingtonensis, formerly Disholcaspis washingtonensis, the fuzzy gall wasp, is a species of hymenopteran that induces stem galls on white oaks on the Pacific coast of North America.

[1][2] The detachable galls have a little stem or neck, are gray or beige and fuzzy, and measure about 8–10 mm in diameter.

[1][3] The larval chamber is located at the center of the ball, the interior of which is otherwise chocolate brown.

[1][3] Older galls may appear pitted.

[3] The locally common galls induced by this wasp are sometimes mistaken for the galls induced by Besbicus conspicuus.