Cephaloleia triangularisCephaloleia triangularis is a species of rolled-leaf beetle in the family Chrysomelidae. It is found in Costa Rica.DescriptionAdults reach a length of about 5.7–7.1 mm. The head, antennae and scutellum are black, while the pronotum is reddish or yellowish with a black macula on the anterior margin behind the head which varies from semicircular to triangular in shape. The elytron is black with a yellow longitudinal vitta.