The genus Alurnus Fabricius, 1775 (Chrysomelidae: Cassidinae: Alurnini) in Colombia with four new species records and an updated checklist in the country Author Rendón-Ramírez, Alejandra Universidad Nacional de Colombia Author Vergara-Navarro, Erika Valentina Corporación Colombiana de Investigación Agropecuaria, Agrosavia. Colección Taxonómica Nacional de Insectos “ Luis María Murillo ” CTNI, C. I. Tibaitatá, Mosquera (Colombia) Author Quiroz-Gamboa, John Alveiro Museo Entomológico Francisco Luis Gallego. Universidad Nacional de Colombia text Zootaxa 2024 2024-12-11 5551 1 116 130 https://doi.org/10.11646/zootaxa.5551.1.4 journal article 10.11646/zootaxa.5551.1.4 1175-5326 14390033 8F4FA9A5-750D-4EE5-9FB4-A978401CF35C Alurnus chocoensis Pardo-Locarno & Constantino, 2023 ( Fig. 6 ) Diagnosis. Head red. Antennal scape and pedicel subequal in length; pedicel widened to the apex. Vertex of head striate and punctate, some punctures each with a pale seta. Front punctate, with yellowish setae. Labrum densely punctate. Pronotum glabrous, finely pubescent. Elytra intense or light red, surface punctate, humeral calli densely punctate ( Pardo-Locarno & Constantino, 2023 ). Material examined. COLOMBIA : Valle del Cauca , Buenaventura , Bajo Anchicayá , 400m , 25.ii.1993 , Coll. N. Carrejo ( 1ex. ) [MUSENUV-6392]. Buenaventura , Bajo Anchicayá , 400m , 3.i.1983 . Coll. K.E. ( 1ex. ) [MUSENUV-6390]. Buenaventura , La Cascada , 340m , 10.i.1992 . Coll. N. Carrejo ( 2exs. ) [MUSENUV-6385. MUSENUV-6387]. Buenaventura , Bajo Anchicayá , 3,601327 -76,858571 , 14.iii.2023 . Coll. S. Paredes-O & M. Hernández. [MUSENUV] Measurements: n= 6. 29mm± 2mm Plant associations. Bactris gasipaes Kunth ( Arecaceae )—peach palm ( Pardo-Locarno & Constantino, 2023 ). Distribution. Colombia ( Valle del Cauca ).