The following new taxa are described: Neoepicorsia fuscalis n. sp., Peru; Epicorsia chicalis n. sp., British Honduras; Protepicorsia quincemila n. sp., Peru; P. sordida n. sp., Bolivia; Ceuthobotys n. gen., type-species C. penai n. sp., Peru; Adoxobotys n. gen., type-species A. cacida (Dyar), n. comb., described in Pionea, also including A. discordalis (Dyar), n. comb., likewise described in Pionea, and A. cristobalis n. sp., Mexico; Hahncappsia suarezalis n. sp., Bolivia.
Pyrausta furvulalis n.n. is proposed to replace P. furvalis Hampson, 1913, nee Eversmann, 1842. P. furvulalis belongs in Neoepicorsia, becoming Neoepicorsia furvulalis (Munroe), n. comb.
Noorda flavidalis Hampson and Psara melanosoma Hampson are transferred to Protepicorsia, forming new combinations. P. melanosoma is sunk as a new synonym of P. flavidalis. P. flavidalis and the closely related P. sordida are the first reported mimetic Protepicorsia.
Phlyctaenia praxitalis Druce, Botys lautalis Lederer, and Boeotarcha fallalis Schaus are transferred to Hahncappsia as new combinations. H. fallalis is sunk as a new synonym of H. lautalis.
Lectotypes are designated for Psara melanosoma Hampson and Phlyctaenia praxitalis Druce.
The new and transferred taxa are characterized, differentiated, and illustrated.