Stenomorphus Dejean, 1831

Bousquet, Yves, 2012, Catalogue of Geadephaga (Coleoptera, Adephaga) of America, north of Mexico, ZooKeys 245, pp. 1-1722 : 719

Genus Stenomorphus Dejean, 1831

Stenomorphus Dejean, 1831: 696. Type species: Stenomorphus angustatus Dejean, 1831 by monotypy. Etymology (original). From the Greek stenos (slender) and morphe (form), alluding to the slender form (" corselet très-allongé... élytres allongées ") of the species of this genus [masculine].

Agaosoma Ménétriés, 1843: 63. Type species: Agaosoma californicum Ménétriés, 1843 by monotypy. Synonymy established by Chaudoir (1844: 478). Etymology (original). From the Greek agaios (admirable) and soma (body), alluding to the unusual and agreeable body form of adults of this genus [neuter].

Diversity.

Six species in North America (three species), Middle and South America (five species), and the West Indies (two species, one of them endemic).

Identification.

Ball et al. (1991) revised the species.

Taxonomic Note.

Ball et al. (1991: 942) postulated that the Neotropical genus Trichopselaphus Chaudoir (eight species) is the sister-group to this genus and that Anisocnemus Chaudoir (two Neotropical species) is the sister-group to { Trichopselaphus + Stenomorphus }.