Mayr, 1863a: 457; Roger, 1863b: 21; Dalla Torre, 1893: 16; Emery, 1911e: 33; Kempf, 1972b: 256; Bolton, 1995b: 422.
Mayr, 1865: 15 (diagnosis); Emery, 1911e: 32 (subtribe, genus diagnoses); Gallardo, 1918c: 14 (Argentina species key); Wheeler, 1925a: 3 (all species key); Brown, 1953a: 104 (review of tribe); Brown, 1965c: 66, 77 (review of tribe and genus, all species revision, key); Wheeler & Wheeler, 1976b: 48 (larvae, review & synthesis); Wheeler & Wheeler, 1985b: 256 (synoptic classification); Dlussky & Fedoseeva, 1988: 79 (synoptic classification); Bolton, 1994: 164 (synoptic classification); Bolton, 1995a: 1053 (census); Bolton, 2003: 46, 176 (diagnosis, synopsis); Lacau et al., 2008: 250 (Colombia species key); Baccaro et al., 2015: 174 (genus in Brazil); Boudinot, 2015: 51 (male identification); Cantone, 2017: 145 (brief male diagnosis); Feitosa & Prada-Achiardi, 2019: 677 (Colombia species key); Camacho et al., 2022: 12 (diagnosis); Fernández et al., 2023: 590 (Colombia worker key).
Extant: 11 valid species
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