The New World species of the genus Hylurgops LeConte are revised and Hylurgops subcostulatus Mannerheim is transferred to the new genus Pachysquamus. A revised key to the tribe Hylastini which can be used for the world fauna is presented to include Pachysquamus. Our studies suggest that the Nearctic species H. knausi Swaine is a valid taxon, distinguishable from the Mesoamerican H. planirostris Chapuis. The subspecies H. rugipennis rugipennis Mannerheim and H. r. pinifex Fitch are considered distinct species. A key to Hylurgops species of the New World is provided to accommodate the restituted species. Due to their broadly separated procoxae the Palearctic species H. bonvouloiri and H. inouyei do not agree with the genus Hylurgops.