Bucculatrix cuneigera is a moth in the Bucculatricidae family. It is found in North America, where it has been recorded from Quebec, Ontario, New Brunswick, Nova Scotia, Maine, Ohio, New York, Massachusetts and North Carolina. The wingspan is 9-10.5 mm. The forewings are dark brown or almost black with white marks. The hindwings are dark brownish or blackish grey. Adults have been recorded on wing from May to July.