A new species of the South American genus Metachaetodus (Coleoptera: Scarabaeoidea: Hybosoridae: Hybosorinae)

a new species of the south american hybosorid genus metachaetodus is described, m. carolineae ocampo sp. nov. a key and diagnostic characters for all known species of the genus are presented. a map with the known distribution for the species is provided. the species m. discus de borre is cited for brazil for the first time.