Apis pallens Fabricius, 1798:276, sex not indicated.Cajennae (leg. Richard). - As Euglossa pallens: - Dalla Torre, 1896Dalla Torre, C.G. 1896. Catalogus Hymenopterorum hucusque descriptorum systematicus et synonymicus, X. Apidae (Anthophila). Sumptibus Guilelmi Engelmann, 1-643. (distribution); Friese, 1899Friese, H. 1899. Monographie der Bienengattung Euglossa Latr. Természetrajzi Füzetek 22:117-172. (distribution). - As Melipona pallens: - Schomburgk, 1848Schomburgk, R. 1848. Reisen in Britisch-Guiana in den Jahren 1840-1844. Dritter Theil. Verlagsbuchhandlung von J. J. Webre, Leipzig. (distribution); Smith, 1854Smith, F. 1854. Catalogue of Hymenopterous Insects in the Collection of the British Museum. Part II. Apidae. London. 465 pp, 8 pl. (distribution). - As Trigona pallens: - Smith-Pardo, 2003Smith-Pardo, A.H. 2003. A preliminary account of the bees of Colombia (Hymenoptera: Apoidea): present knowledge and future directions. Journal of the Kansas Entomological Society 76 (2):335-341. (distribution); Rasmussen & Delgado, 2019Rasmussen, C. & C. Delgado 2019. Abejas sin aguijón (Apidae: Meliponini) en Loreta, Peru. 1-70. (distribution). - As Trigona pallens pallens: - Nates-Parra, 2001Nates-Parra, G. 2001. Las abejas sin aguijón (Hymenoptera: Apidae: Meliponini) de Colombia. Biota Colombiana 2 (3):233-248. (distribution).