Discoderus LeConte, 1853

Bousquet, Yves, 2012, Catalogue of Geadephaga (Coleoptera, Adephaga) of America, north of Mexico, ZooKeys 245, pp. 1-1722 : 716-717

Genus Discoderus LeConte, 1853

Discoderus LeConte, 1853c: 381. Type species: Selenophorus parallelus Haldeman, 1843 designated by Lindroth (1968: 830). Etymology. From the Greek discos (circular plate) and dere (neck, by extension pronotum), alluding to the rounded lateral edges of the pronota (" thorace ... lateribus rotundatis " for Discoderus parallelus and " magis rotundatis " for Discoderus tenebrosus ) of adults of the two species LeConte had before him [masculine].

Selenalius Casey, 1914: 153. Type species: Discoderus cordicollis Horn, 1891 by original designation. Synonymy established by Noonan (1985: 48).

Diversity.

Twenty-eight species in North America (19 species) and Middle America (11 species).

Identification.

This genus has never been revised and such study is much needed. More than 60% of the currently valid North American species have been described by Casey and some of them will certainly fall in synonymy.