Revision of the genus Opselater Costa (Coleoptera, Elateridae, Agrypninae). The genus Opselater Costa, 1975 is composed by bioluminescent elaterids, with small and lateral luminous spots on the base of pronotum, and slender body with elytra tapering to apices. They are distributed from Panama to Argentina. Seven species are redescribed, Opselater hebes (Germar, 1841), O. helvolus (Germar, 1841), O. lucens (Illiger, 1807), O. melanurus (Candèze, 1863), O. pyrophanus (Illiger, 1807), O. quadraticollis (Blanchard, 1843), and O. succinus Costa, 1980. O. costae sp. nov. is described, from Linhares - Espírito Santo, Brazil. A key to species and illustrations of most characters are also provided, including prothorax, pterothorax, wings and metendosternitum.
Agrypninae; Coleoptera; Elateridae; Opselater; taxonomy
