The species of the genus Oectropsis Blanchard, 1851 (Cerambycidae, Lamiinae) are exclusively distributed west of the central Andes region (Chile) and were probably isolated due to phenomena caused by the Andes Mountains. Recent taxonomic revisions of the genus revealed that the species do not have the main features of Acanthocinini, the tribe in which this genus is currently allocated. Instead, they share characteristics with Pogonocherini, especially Pogonocherus Dejean, 1821, whose majority of species are distributed in North America. In addition to the tribal transference, we describe a new species, update a previous key, and we discuss the taxonomic status of some tribes.