Roger, 1863b: 17; Mayr, 1863a: 409; Dalla Torre, 1893: 23; Emery, 1911e: 41; Smith, 1951c: 783 (North America); Kempf, 1972b: 104 (Neotropical); Smith, 1979: 1336 (North America); Brandão, 1991: 341; Bolton, 1995b: 186.
Mayr, 1865: 14 (diagnosis); Mayr, 1867a: 87 (diagnosis); Emery, 1911e: 41 (diagnosis, subgenera key); Gallardo, 1918c: 30 (Argentina species key); Kusnezov, 1957e: 13 (partial key); Brown, 1958g: 206 (review of genus, all species key); Kugler & Brown, 1982: 6 (all species key); Fernández, 1992: 551 (Colombia species key); Lattke, 1994: 109 (phylogeny); Bolton, 1995a: 1049 (census); Arias-Penna, 2008b: 56 (all species key); Baccaro et al., 2015: 170 (genus in Brazil); Boudinot, 2015: 56 (male identification); Nettel-Hernanz et al., 2015: 543 (phylogeny, biogeography); Poteaux et al., 2015: 127 (genetic and phenotypic diversity); Cantone, 2017: 142 (brief male diagnosis); Feitosa & Prada-Achiardi, 2019: 665 (Colombia species key); Camacho et al., 2022: 10 (diagnosis).