Cephaloleia histrio is a species of beetle in the family Chrysomelidae. It is found in Bolivia, Colombia, Ecuador, Peru and Venezuela.
Adults reach a length of about 5.6âÂÂ6.8 mm. Adults are shining black, with the basal two-thirds of the elytron yellowish and the remainder black. The scutellum and legs are also black.
Adults have been collected feeding on Heliconia species.