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 Acupalpus Latreille, 1829 Acupalpus Latreille, 1829: 391. Type species: Carabus meridianus Linnaeus, 1760 designated by Blanchard [in Audouin et al. 1842: plate 21]. Etymology. From the Latin nouns acus (needle, pin) and palpus (feeler, by extension palp), alluding to the acuminate last maxillary palpomere (" les palpes exterieurs se terminent par un article pointu au bout ") of the adult [masculine]. Diversity. Worldwide, with about 125 species in the Nearctic (12 species), Neotropical (ten species), Australian (about ten species), Oriental (about 15 species), Palaearctic (about 50 species), and Afrotropical (30 species) Regions arrayed in eight subgenera: Acupalpus s.str. (about 75 species), Ancylostria Schauberger (four species), Anthracus (32 species), Palcuapus Habu (one east Palaearctic species), Pseudanthracus Habu (three species), Setacupalpus Habu (two east Palaearctic species), Subacupalpus Habu (two Asian species), and Tachistodes (four species). The North American fauna is represented by 12 species (roughly 9.6% of the world fauna), one of them is adventive. Taxonomic Note. Noonan (1976: 23) treated Hemiaulax Bates (two species), with Idiomelas Tschitcherine (two species) as synonym, as a subgenus of Acupalpus . In Lorenz (2005: 361), Hemiaulax and Idiomelas are listed as valid genera with Egaploa Alluaud (two species) considered a subgenus of Idiomelas .