New species, new synonymy and new record in Cerambycidae (Coleoptera) from Mexico and South America. Three new taxa of Cerambycinae from Brazil are described: in Cerambycini, Iuati gen. nov., type species, I. spinithorax sp. nov. (Rondônia); in Trachyderini, Ancylosternus annulicorne sp. nov. (Mato Grosso). In Lamiinae are described three new species: in Apomecynini, Ptericoptus avanyae sp. nov. (Brazil, Paraíba); in Desmiphorini, Estoloides (Estoloides) aurantius sp. nov. (Mexico, Quintana Roo); Mimestoloides fasciatus sp. nov. (Mexico, Guerrero). Butherium scabricolle Nonfried, 1895 is considered a synonym of Coleoxestia corvina (Germar, 1824). Trachyderomorpha notabilis Tippmann, 1960 is recorded for Peru.
Apomecynini; Cerambycinae; Cerambycini; Desmiphorini; Lamiinae; Trachyderini
