Tetragonoderus Dejean, 1829

Bousquet, Yves, 2012, Catalogue of Geadephaga (Coleoptera, Adephaga) of America, north of Mexico, ZooKeys 245, pp. 1-1722 : 789-790

Genus Tetragonoderus Dejean, 1829

Tereus Billberg, 1820: 26 [potential nomen oblitum, see Bousquet (2002b: 50)]. Type species: Carabus quadrinotatus Fabricius, 1798 designated by Bousquet (2002b: 50). Etymology. Unknown [masculine].

Tetragonoderus Dejean, 1829: 485 [potential nomen protectum]. Type species: Carabus quadrum Fabricius, 1792 designated by Hope (1838: 89). Synonymy established by Bousquet (2002b: 50). Etymology (original). From the Greek tetragonos (square) and dere (neck, by extension pronotum), alluding to the shape of the pronotum (" corselet ... plus ou moins carré ") of adults of the 16 species Dejean had before him [masculine].

Diversity.

About 75 species (Lorenz 2005: 453) arrayed in two subgenera, Tetragonoderus s.str. with about 35 species in the Old World and Crossonychus for the Western Hemisphere species.

Identification.

Lindroth (1969a: 1010) included a key to four of the five species found in North America.