Accuminulia buscki is a species of moth of the family Tortricidae described by John W. Brown in 2000. It is found in Chile. The species was first recorded as an interception at the Port of New York in a shipment of grapes from Chile. The length of the forewings is 6.5–8 mm for males and 6–7 mm for females. The forewings are whitish tan, with irregular gray, brown and cream overscaling and irrorations (speckling). The hindwings are dingy white, with pale gray overscaling and mottling. Adults have been recorded on wing from October to April.