Apis ruficrus Latreille, 1804:176 - As Melipona ruficrus: - Alfken, 1935-1936Alfken, J.D. 1935-1936. Ueber eine Bienenausbeute aus Venezuela. Veröffentlichungen aus dem Übersee-Museum Bremen 1:316-320. (distribution). - As Trigona ruficrus: - Saussure, 1868Saussure, H.de 1868. Hymenoptera. Familien der Vespiden, Sphegiden, Pompiliden, Crabroniden und Heterogynen. In: Reise der Österreichischen Fregatte Novara um die Erde. 1857–1859. Zoologischer Theil. part 1. Wien. 138 pp., 4 pl. (distribution); Kirby, 1884Kirby, W.F. 1884. On the Hymenoptera collected during the recent expedition of H.M.S. 'Challenger.'. The Annals and Magazine of Natural History ser. 4: v. 13:402-413. (distribution); Buysson & Marshall, 1892du Buysson, R. & T.A. Marshall 1892. Voyage de M. E. Simon au Venezuela (Décembre 1887 - Avril 1888). Annales de la Société Entomoloqique de France 61:53-76, pls. 3-4. (distribution); Silvestri, 1902Silvestri, F. 1902. Contribuzione alla conoscenza dei Meliponidi del bacino del Rio de la Plata. Rivista di Patologia Vegetale 10:121-174. (distribution); Cockerell, 1912Cockerell, T.D.A. 1912. New bees from Brazil. Psyche 19 (2):41-61. (distribution); Cockerell, 1913Cockerell, T.D.A. 1913. Meliponine bees from Central America. Psyche 20:10-14. (distribution); Lutz & Cockerell, 1920Lutz, F.E. & T.D.A. Cockerell 1920. Notes on the distribution and bibliography of North American bees of the families, Apidae, Meliponidae, Bombidae, Euglossidae, and Anthophoridae. Bull. Amer. Mus. Nat. Hist 42 (15):491-641. (distribution); Cockerell, 1920Cockerell, T.D.A. 1920. Some neotropical Meliponid bees. Bull. Amer. Mus. Nat. Hist. 42:459-468. (distribution); Schwarz, 1948Schwarz, H.F. 1948. Stingless bees (Meliponinae) of the Western Hemisphere. Bulletin of the American Museum of Natural History 90:i-xviii, 1-546. (distribution).
Melipona citriperda Illiger, 1806:158, sex not indicated.Brasilien. - Lutz & Cockerell, 1920Lutz, F.E. & T.D.A. Cockerell 1920. Notes on the distribution and bibliography of North American bees of the families, Apidae, Meliponidae, Bombidae, Euglossidae, and Anthophoridae. Bull. Amer. Mus. Nat. Hist 42 (15):491-641.:501 ( listed as synonym of Trigona ruficrus (Latreille, 1804)); Schwarz, 1948Schwarz, H.F. 1948. Stingless bees (Meliponinae) of the Western Hemisphere. Bulletin of the American Museum of Natural History 90:i-xviii, 1-546.:259 ( listed as synonym of Trigona ruficrus (Latreille, 1804)).
Trigona luteipes Smith, 1854:410 - Schwarz, 1948Schwarz, H.F. 1948. Stingless bees (Meliponinae) of the Western Hemisphere. Bulletin of the American Museum of Natural History 90:i-xviii, 1-546.:259 ( listed as synonym of Trigona ruficrus (Latreille, 1804)).
Trigona ruficrus concolor Gribodo, 1895:201 - Schwarz, 1948Schwarz, H.F. 1948. Stingless bees (Meliponinae) of the Western Hemisphere. Bulletin of the American Museum of Natural History 90:i-xviii, 1-546.:259 ( listed as synonym of Trigona ruficrus (Latreille, 1804)).