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 Myas Sturm, 1826 Myas Sturm, 1826: 6, 171. Type species: Abax chalybaeus Palliardi, 1825 by monotypy. Etymology. Uncertain, possibly from the Latin myax , - acis (kind of pearl mussels in Pliny the Elder) or the Greek mys , myos (mouse), or myia (fly) [masculine]. The name was proposed by Franz Anton Ziegler and first described by Dejean (1828: 423-424). Diversity. Thirty-two species (Lorenz 2005: 265-266) in the temperate regions of North America (two species), Asia (29 species), and Europe (one species), arrayed in two subgenera (Bousquet 1999: 90): Myas s.str. for the European species and Trigonognatha for the other ones.