Cephaloleia ornatula is a species of beetle of the family Chrysomelidae. It is found in Brazil (São Paulo).
Adults reach a length of about 6.2âÂÂ6.5 mm. The head is black with a red vertex. Antennomeres 1âÂÂ4 are red, while 5âÂÂ11 are black. The pronotum has a slightly darker basal margin and there is a black macula on each elytron behind the humerus and apex.