Apristus Chaudoir, 1846

Bousquet, Yves, 2012, Catalogue of Geadephaga (Coleoptera, Adephaga) of America, north of Mexico, ZooKeys 245, pp. 1-1722 : 807-808

Genus Apristus Chaudoir, 1846

Apristus Chaudoir [in Chaudoir and Hochhuth], 1846: 62. Type species: Apristus subaeneus Chaudoir, 1846 by monotypy. Etymology (original). From the Greek a (absence) and prizos (saw-like), alluding to the smooth (i.e., not denticulate) tarsal claws (" crochets des tarses non dentelés ") of the adults [masculine].

Diversity.

About 60 species (Lorenz 2005: 472) in the Nearctic (13 species), Neotropical (five species in Middle America and the West Indies), Australian, Oriental, Palaearctic (27 species), and Afrotropical Regions.

Identification.

Casey (1920: 272-276) wrote a key to all but one ( Apristus latens ) North American species. As usual his key is difficult to use. Ten of the current 13 species in North America have been described by Casey (1920) and only two ( Apristus constrictus and Apristus pugetanus ) have been study subsequently (Lindroth 1969a). A taxonomic revision of the genus is needed.