Emery, 1924f: 266; Chapman & Capco, 1951: 111 (Asia); Kempf, 1972b: 227 (Neotropical); Smith, 1979: 1391 (North America); Taylor, 1987a: 72 (New Caledonia); Brandão, 1991: 377 (Neotropical); Bolton, 1995b: 381.
Mann, 1921: 456 (Melanesia species key); Wheeler, 1922: 677 (subgenera key); Emery, 1924f: 266 (diagnosis); Kempf, 1963a: 195 (Neotropical species key); Kempf, 1964e: 66 (Irogera species key); Kugler, 1994: 17 (diagnosis, all species revision, key); LaPolla & Sosa-Calvo, 2006: 67 (Guyana species key); Heterick, 2009: 175 (south-western Australia species key); Baccaro et al., 2015: 298 (genus in Brazil); Cantone, 2017: 233 (brief male diagnosis); Fernández & Serna, 2019: 810 (Colombia species key).
Extant: 40 valid species (9 synonyms, 1 unavailable, 5 obsolete combinations), 0 valid subspecies (2 synonyms, 6 obsolete combinations)