Abstract Four new species are described: Xystochroma luteotarsis sp. nov. (Cerambycinae, Callichromatini), from Ecuador; Psyrassa tysoni sp. nov. (Cerambycinae, Elaphidiini), from Guatemala; Bisaltes (Bisaltes) lateralis sp. nov. (Lamiinae, Apomecynini), from Ecuador; and Nagma hovorei sp. nov. (Lamiinae, Calliini), from Ecuador. A key to species of Xystochroma Schmidt, 1924 is provided and Psyrassa tysoni sp. nov. is included in a previous key. Variation in the pubescent pattern of Rosalba strandi (Breuning, 1943) is reported and the species is newly recorded for Paraguay. Chromatic variation in Cyrtinus umbus Martins & Galileo, 2009 (Lamiinae, Cyrtinini) is provided and the species is redescribed based on a dark specimen; a new province record (Puntarenas, Costa Rica) and a new country record (Panama) are included. Chromatic variation and sexual dimorphism in Phaea quadrimaculata Wappes & Santos-Silva, 2021 (Lamiinae, Tetraopini) is reported, and a new Mexican state record (Oaxaca) is provided. described sp nov Cerambycinae, Cerambycinae (Cerambycinae Callichromatini, Callichromatini , Callichromatini) Ecuador Elaphidiini, Elaphidiini Elaphidiini) Guatemala (Bisaltes Lamiinae, Lamiinae (Lamiinae Apomecynini, Apomecynini Apomecynini) Calliini, Calliini Calliini) Schmidt 192 Breuning, Breuning (Breuning 1943 Paraguay Galileo 200 Cyrtinini specimen Puntarenas, Puntarenas (Puntarenas Rica Panama (Panama SantosSilva, SantosSilva Santos Silva, Silva Santos-Silva 202 Tetraopini Oaxaca (Oaxaca 19 194 20 1 2

Abstract Three new species and one new genus are described in Apomecynini: Adetaptera setigera sp. nov., from Mexico; Osckayia obrieni sp. nov., from Mexico; and Capaciphrynidius extensus, gen. nov., sp. nov., from Honduras.