Feronia (Evarthrus), LeConte, 1853

Bousquet, Yves, 2012, Catalogue of Geadephaga (Coleoptera, Adephaga) of America, north of Mexico, ZooKeys 245, pp. 1-1722 : 555

Subgenus Evarthrus LeConte, 1853

Evarthrus LeConte, 1853a: 226, 227. Type species: Feronia sigillata Say, 1823 designated by Casey (1918: 322). Etymology. From the Greek ev (original, primitive, by extension simple) and arthron (joint), possibly alluding to the simple (i.e., non carinate) basal antennomeres (" antennae articulis basalibus simplicibus ") of the adult [masculine].

Anaferonia Casey, 1918: 341. Type species: Feronia constricta Say, 1823 by original designation. Synonymy established by Freitag (1969: 126). Etymology. From the Greek prefix ana - (up, back, again) and the generic name Feronia [ q.v.] [feminine].

Megasteropus Casey, 1918: 350. Type species: Megasteropus gigas Casey, 1918 by original designation. Synonymy established by Freitag (1969: 126). Etymology. From the Greek megas (large) and the generic name Steropus [masculine].

Eumolops Casey, 1918: 351. Type species: Eumolops sexualis Casey, 1918 (= Evarthrus torvus torvus LeConte, 1863) by original designation. Synonymy established by Freitag (1969: 127). Etymology. From the Greek eu (agreeable, primitive) and the generic name Molops [masculine].

Evarthrinus Casey, 1918: 357. Type species: Eumolops decepta Casey, 1918 designated by Freitag (1969: 127). Synonymy established by Freitag (1969: 127). Etymology. From the generic name Evarthrus [ q.v.] and the Latin suffix - inus (pertaining to) [masculine].

Evarthrops Casey, 1920: 194. Type species: Evarthrus furtivus LeConte, 1853 designated by Freitag (1969: 127). Synonymy established by Freitag (1969: 127). Etymology. From the generic name Evarthrus [ q.v.] and the Greek suffix - ops (having the appearance of) [masculine].

Diversity.

Twenty-seven species are known.