Subfamilia Nerthrinae Kirkaldy, 1906

NERTHRINAE Kirkaldy, 1906a: 149. Type genus: Nerthra Say, 1832.

MONONYCHINAE Fieber, 1851a: 9, 12 (Mononycoidea, as family). Type genus: Mononyx Laporte, 1832 (= Nerthra Say, 1832).