Morphology and natural history of two species of bromeliad leaf beetles in the genus Calliaspis Dejean, 1836 from Southern Brazil, with a summary of the current knowledge of Imatidiini immatures (Coleoptera: Chrysomelidae: Cassidinae)

This publication describes the natural history and morphology of the immatures of two beetles species associated with bromeliads, Calliaspis umbonata Hincks, 1956 and Calliaspis cinnabarina Boheman, 1850 (Cassidinae: Imatidiini). Immature stages were previously unknown for the genus. Adults and larvae of both species are leaf scrapers. Mature larvae of C. umbonata are described based on a set of characters previously published for immature beetles. Descriptions and illustrations are provided for both species, in addition to a summary of the information presently available for immature stages of Imatidiini.