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 Trechus oregonensis Hatch, 1951 Trechus oregonensis Hatch, 1951: 114. Type locality: "Hood R[i]v[er] Rapids, Parkdale [Hood River County], Ore[gon]" (original citation). Holotype (♂) in USNM. Distribution. This species inhabits the North American Cordilleras ranging from British Columbia and southwestern Alberta (Lindroth 1963b: 201) south to western Montana (Russell 1968: 48) and the Sierra Nevada in California (Lindroth 1963b: 201). The record from "Colorado" (Bousquet and Larochelle 1993: 121) needs confirmation. Records. CAN : AB, BC USA : CA, ID, MT, OR, WA [CO]