Catalogue of Geadephaga (Coleoptera, Adephaga) of America, north of Mexico Author Bousquet, Yves Agriculture and Agri-Food Canada, Central Experimental Farm, Ottawa, Ontario, Canada bousquety1@yahoo.com text ZooKeys 2012 2012-11-28 245 1 1722 http://dx.doi.org/10.3897/zookeys.245.3416 journal article http://dx.doi.org/10.3897/zookeys.245.3416 1313-2970-245-1 FFFF52503A0AFF882450FFB66D45FF8E 578462 Subgenus Amerizus Chaudoir, 1868 Amerizus Chaudoir, 1868b: 216. Type species: Trechus spectabilis Mannerheim, 1852 by monotypy. Diversity . Six species in North America (five species) and the Altai Mountains in Russia ( Amerizus teles Belousov and Dudko, 2010). Identification. Lindroth (1963b: 403-406) treated four of the five North American species, leaving Amerizus utahensis .