Caerois chorinaeus is a butterfly of the family Nymphalidae. It was described by Johan Christian Fabricius in 1775. It is found in Suriname, the Guianas and Peru.
Caerois chorinaeus is a large butterfly with a very concave outer edge on its forewings, giving the apex a hooked shape, and pointed hindwings that form a tail. The upper side of the wings is dark brown, with the forewings barred by a yellow band from halfway along the costal margin to the outer angle, and the hindwings edged with a yellow marginal band. The reverse side is pearly brown.