The tribe Acutalini Fowler (Homoptera, Membracidae, Smiliinae): new genera, new species and some nomenclatural changes

The tribe Acutalini Fowler is redescribed as well as the genera Acutalis Fairmaire, Euritea Stål, and Thrasymedes Kirkaldy. The following new taxa and nomenclatural changes are presented: Thrasymedes mexicana sp.n. (from Mexico, Oaxaca); Bordonia gen.n., with B. venezuelana sp.n. (type-species) (from Venezuela, Portachuelo), B. clypeata sp.n. (from Colombia, Cuesta Boba), B. majuscula sp.n. (from Venezuela, Portachuelo), and Cornutalis gen.n., with C. cauca sp.n. (type-species) (from Colombia, Cauca), and C. validu sp.n. (from Ecuador, Sto. Domingo). Acutalis fusconervosa Fairmaire, 1846 = Horiola venosa Walker, 1858, syn.n.; Euritea munda (Walker, 1858) = Stictolobus nitidus Funkhouser, 1940, syn.n.; Bordonia nigricosta (Goding, 1926), comb.n.; Bordonia virescens (Funkhouser, 1940), comb.n.. One species is transferred to Smiliinae-Ceresini: Tapinolobus curvispina (Walker, 1858), comb.n. (formerly in Thrasymedes) = Tapinolobus fasciatus Sakakibara, 1969, syn.n.; another one is transferred to Darninae-Cymbomorphini: Eumela darnioides (Walker, 1858), comb.n. (formerly in Euritea)