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 Genus Eucaerus LeConte, 1853 Eucaerus LeConte, 1853c: 386. Type species: Eucaerus varicornis LeConte, 1853 by monotypy. Etymology. From the Greek eu (well) and caeros (fit, opportune) [masculine]. Diversity. Fourteen species in the Western Hemisphere arrayed in two subgenera: Eucarus s.str. (11 species) and Lachnaces Bates (three Amazonian species).