the length of the forewings is 6.5–8.4 mm. the ground color of the forewings (including the fringe) is mouse gray or blackish gray, sparsely to heavily dusted with whitish. there are two pale yellow to yellowish orange marks and some black marks. the ground color of the hindwings is white with a broad black border. adults are on wing from february to april (in california) and from april to may (in british columbia).