Revision of the genus Cosmotomidius Melzer (Coleoptera, Cerambycidae, Lamiinae)

Abstract

Melzer (1931) proposed the genus Cosmotomidius to accommodate Pogonocherus setosus Audinet-Serville, 1834 and considered the new genus near to Cosmotoma Blanchard, 1845. Following this study, all authors interpreted this action to mean that Melzer had allocated the genus in the tribe Acanthocinini. Cosmotomidius setosus, the only species of the genus, occurs in Brazil from Espírito Santo to Santa Catarina, and also in Paraguay and Argentina. In this contribution we revise Cosmotomidius and propose its transference to the tribe Acanthoderini, describe a new species from Bolivia, and provide new distribution records for C. setosus. The following acronyms are used throughout: ACMT,