Aextoxicola pilolcurensis, a new genus and species of false skin beetles (Coleoptera, Biphyllidae) from the Chilean Valdivian rainforest

<i>Aextoxicola</i> Tello & Tello-Arriagada, <b>gen. nov.</b>, with its type species <i>Aextoxicola pilolcurensis</i> Tello & Tello-Arriagada, <b>sp. nov.</b>, a new South American genus and species of the family Biphyllidae, are described from the Valdivian rainforest in Chile. The morphological characters are illustrated and compared with morphologically similar extant and extinct genera. Finally, a key for genera of Biphyllidae recorded in Chile is provided.