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Fourteen species are recorded for the first time for Argentina: Amethysphaerion guarani Martins & Napp, 1992 (Cerambycinae, Elaphidiini); Apyrauna annulicornis Martins, 2005 (Cerambycinae, Elaphidiini); Coleoxestia pubicornis (Gounelle, 1909) (Cerambycinae, Cerambycini); Eburodacrys truncata Fuchs, 1956 (Cerambycinae, Eburiini); Ectenessidia nigriventris (Belon, 1902) (Cerambycinae, Ectenessini); Gorybia apatheia Martins, 1976 (Cerambycinae, Piezocerini); Hemilissa sulcicollis Bates, 1870 (Cerambycinae, Piezocerini); Pronoplon rubriceps (Gounelle, 1909) (Cerambycinae, Hexoplonini); Callisema rufipes Martins & Galileo 1990 (Lamiinae, Calliini); Recchia goiana Martins & Galileo, 1985 (Lamiinae, Aerenicini); Rosalba approximata (Melzer, 1934) (Lamiinae, Apomecynini); Rosalba digna (Melzer, 1934) (Lamiinae, Apomecynini); Hypsioma steinbachi Dillon & Dillon, 1945 (Lamiinae, Onciderini); Trypanidius maculatus Monné & Delfino, 1980 (Lamiinae, Acanthocinini).

Cnemidochroma Schmidt, 1924, a small genus of the tribe Callichromatini endemic in South America, comprises six species of which the only one recorded in Paraguay, Uruguay, Argentina and Brazil is C. phyllopus (Guérin-Méneville, 1844). The aim of this study was to estimate potential suitable areas for C. phyllopus to provide further knowledge on its current distribution. A dataset of 43 records was compiled and species distribution modelling was employed linking these occurrences with bioclimatic variables. Results indicate higher suitability conditions along the Atlantic coast of Brazil, reaching north Uruguay and extending inland to Paraguay and northern parts of Argentina. In addition, we report a new distributional record from Corrientes, Argentina.