Emery, 1924f: 269; Kempf, 1972b: 128; Bolton, 1995b: 220.
Emery, 1924f: 269 (diagnosis); Smith, 1944e: 226 (all species key); Weber, 1950d: 3 (all species key); Fernández & Baena, 1997: 112 (all species key); Feitosa & Brandão, 2008: 8 (diagnosis, all species revision, key); Baccaro et al., 2015: 232 (genus in Brazil); Fernández & Serna, 2019: 856 (Colombia species key).
Extant: 16 valid species