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 Subtribe Trechina Bonelli, 1810 Trechii Bonelli, 1810: Tabula Synoptica. Type genus: Trechus Clairville, 1806. Diversity. Worldwide, with about 2,470 species (Lorenz 2005: 168-200). The North American fauna is represented by about 225 species (roughly 9% of the world fauna) arrayed in nine genera.