Rhadine LeConte, 1846

Bousquet, Yves, 2012, Catalogue of Geadephaga (Coleoptera, Adephaga) of America, north of Mexico, ZooKeys 245, pp. 1-1722 : 736

Genus Rhadine LeConte, 1846

Rhadine LeConte, 1846b: 218. Type species: Rhadine larvalis LeConte, 1846 by monotypy. Etymology. From the Greek rhadinos (slender), probably alluding to the slenderness of adults (" corpus gracillimum ") of the sole species LeConte had before him [feminine].

Comstockia Van Dyke, 1919a: 179. Type species: Comstockia subterranea Van Dyke, 1919 by original designation. Synonymy established implicitly by Jeannel (1931: 407), explicitly by Barr and Lawrence (1960: 138). Etymology. The generic name honors John Henry Comstock [1849-1931], professor of entomology at Cornell University. Comstock established the Department of Entomology at Cornell, the first such department in the United States.

Spelaeorhadine Bolívar y Pieltain, 1944: 27. Type species: Spelaeorhadine araizai Bolívar y Pieltain, 1944 by original designation. Synonymy established implicitly by Bolívar y Pieltain and Hendrichs (1964: 6). Etymology. From the Greek spelaion (cave, cavern) and the generic name Rhadine [ q.v.], alluding to the place where the adults live [feminine].

Diversity.

Forty-nine species in North America (40 species) and Mexico (11 species) arrayed in six species groups.

Identification.

Barr (1960b) revised the cavernicolous species and provided a key for their identification, but several new species have been described since. Barr (1974b) published a key to the species groups and a revision of the species of the subterranea group. Five new species in this group have been described subsequently by Reddell and Cokendolpher (2001, 2004) and Reddell and Dupérré (2009). Barr (1982) also revised the Mexican species of Rhadine . A taxonomic revision of the other five species groups is needed.