Emery, 1924f: 315; Kempf, 1972b: 37; Bolton, 1995b: 80.
Emery, 1924f: 315 (diagnosis); Kempf, 1975c: 369 (review); Wheeler & Wheeler, 1991a: 132 (review); Bolton, 1994: 100; Bolton, 1995a: 1048 (census); Brandão et al., 2015: 42 (all species revision, key); Baccaro et al., 2015: 216 (genus in Brazil); Cantone, 2017: 191 (brief male diagnosis); Fernández & Serna, 2019: 845 (Colombia species key).
Extant: 4 valid species