Four monotypic genera, and the species belonging to each genus – Arioge germainii (Signoret), Eretmophora protensa Stein, Rochrosoma subaptera Reed, and Stiroptus lineaticornis Stål – are redescribed, and one new genus and one new species from Colombia are described in the tribe Coreini. Photographs and drawings of the adults and male genitalia and new distributional records to the redescribed species are given, and a lectotype for Eldarca germainii Signoret is designated.