Diaethria clymena, the Cramer's eighty-eight, is a species of butterfly of the family Nymphalidae. It is found from Mexico to Peru and Brazil. It was discovered to science by Pieter Cramer, in a fascicle of De uitlandsche Kapellen, 1775.
The wingspan is about 30–40 millimetres (1.2–1.6 in). Adults are black with a blue band on each wing. The underside is red and white with black stripes that look like an outlined number "89" or "98".
The larvae feed on Trema lamarckiana, Trema micrantha, and Theobroma.
