Taxonomy of afrotropical Securiops, new genus, and Cloeodes traver (Ephemeroptera: Baetidae)

Based on the examination of type material, new collections, and associated life-history stages, certain species and generic concepts are revised. We recognize new synonyms for the pantropical genus Cloeodes Traver [= Potamocloeon Gillies, syn. n.; = Maliqua Lugo-Ortiz & McCafferty, syn. n.] and the following new species synonyms and new combination: C. dentatus (Kimmins), comb. n. [= M. plumosa (Wuillot), syn. n.; = M. abdallahi McCafferty, syn. n.]. First descriptions of male alates are provided for C. portabilis Lugo-Ortiz & McCafferty and C. pseudogladius Gattolliat. A species previously placed in the genus Afrobaetodes Demoulin instead belongs to Cloeodes [C. pusillus (Navis), comb. n.]. Securiops, gen. n., is established for the larvae formerly and incorrectly attributed to Potamodoeon, and this genus contains four species, including S. macafertiorum (Lugo-Ortiz), comb. n., the type species. We name three new species: S. mandrare, sp. n., S. megapalpus, sp. n., and S. mutadens, sp. n.