Mayr, 1863a: 454; Roger, 1863b: 19; Dalla Torre, 1893: 31; Emery, 1911e: 61; Wheeler, 1922: 763; Bolton, 1995b: 395; Schmidt & Shattuck, 2014: 137 (species checklist); Fisher & Bolton, 2016: 410 (checklist).
Mayr, 1865: 12 (diagnosis); Emery, 1911e: 61 (diagnosis); Arnold, 1915: 41 (diagnosis); Bolton, 1994: 164 (synoptic classification); Bolton, 1995a: 1053 (census); Robertson, 2002b: 8 (diagnosis, all species revision, key); Schmidt & Shattuck, 2014: 135 (diagnosis, synoptic description, distribution, ecology and behavior, phylogenetic and taxonomic considerations); Fisher & Bolton, 2016: 409 (diagnosis); Cantone, 2017: 274 (brief male diagnosis).
Extant: 2 valid species