New species of bark beetles (Pityophthorini) from Mexico and tropical America (Coleoptera, Scolytidae)

For many years specimens of Neotropical Pityophthorini have been accumulating in the National Museum.Many of these were recognized as belonging to undescribed genera and species, but other duties have, until recently, prevented a thorough study of these interesting forms.In the meantime several authors have described most of the new genera and several of the new species.The genera with which we are concerned in this paper are Zhamnophthorus Schedl, Neodryocoetes Eggers, Neopityophthorus Schedl, Myeloborus Blackman, Spermophthorus Costa Lima, Pityoborus Blackman, Pityophthorus Eichhoff, Gnathotrichus Eichhoff, and the new genus Pityophthoroides described herein.