A Reconsideration of Pachyschelus schwarzi Kerremans and a Review of American Pachyschelus North of MÉxico (Coleoptera: Buprestidae) Author Hespenheide, Henry A. text The Coleopterists Bulletin 2003 2003-12-31 57 4 459 468 http://dx.doi.org/10.1649/584 journal article 10.1649/584 1938-4394 Pachyschelus purpureus purpureus (Say), 1836 Metonius purpureus Say 1839:164 . P. americanus Gory 1841:346 (synonymy: LeConte 1859). Brachys purpurea (Say) , LeConte 1859:253. Brachys americana (Gory) , LeConte 1859:253. Metonius biimpressus Motschulsky 1859:54 (synonymy: Nelson 1980). P. biimpressus (Motschulsky) , Obenberger 1925:98.