Cephaloleia reventazonica is a species of beetle of the family Chrysomelidae. It is found in Costa Rica and Nicaragua.
Adults reach a length of about 6.1âÂÂ7.1 mm. Adults are pale yellow, with the antennae black (except for antennomeres 1 and 11). The pronotum has a black subtriangular macula and black anterior and basal margins. The elytron has a black lateral margin and the humeral macula is subquadrate. The venter and legs are pale yellow.
Adults have been collected feeding on Heliconia lathispatha, Heliconia pogonantha, Calathea lutea, Cephaloleia marantifolia and Heliconia psittacorum.