The identity of three South American "smiliine" treehoppers (Hemiptera, Membracidae) and related taxonomic changes, including description of a new genus in Thuridini.

Based on examination of holotypes or interpretation of original descriptions, four taxonomic changes are proposed for South American species erroneously placed in the tribe Smiliini: Flynnia, gen. n. (Thuridini) and F. fascipennis (Funkhouser), comb. n. from Bolivia; Antianthe atromarginata (Goding), comb. n. from Ecuador; Amastris pilosa (Funkhouser), comb. n. from Peru; and Thelia planeflava Fairmaire from Brazil to Polyglyptini incertae sedis, new placement.