Cephaloleia alternansCephaloleia alternans is a species of beetle of the family Chrysomelidae. It is found in Ecuador and Peru.DescriptionAdults reach a length of about 8.8–9.2 mm. They have a yellow body, the head with the vertex black. The pronotum is yellow with a black trapezoidal macula on the middle of the anterior margin and the elytron is yellow with a transverse black band near the base and another on the apical one-third.BiologyThe hostplant is unknown, but adults have been collected on Calathea lanata.