Apis Cajennensis Fabricius, 1798:273, sex not indicated.Cajennae (leg. Richard); Franklin, 1913Franklin, H.J. 1913. The Bombidae of the New World. Part II - Species south of the United States. Transactions of the American Entomological Society 39 (2):73-200.:123, it is, of course, doubtful whether Fabricius' specimens of cayennensis are still extant. - Franklin, 1913Franklin, H.J. 1913. The Bombidae of the New World. Part II - Species south of the United States. Transactions of the American Entomological Society 39 (2):73-200.:123 ( listed as synonym of Bombus medius Cresson, 1863); 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.:523 ( listed as synonym of Bombus medius Cresson, 1863). - As Apis cayennensis: - As Bombus cajennensis: - Curtis et al., 1837Curtis, J., Haliday, A.H. and Walker, F. 1837. Descriptions of the Insects collected by Captain P.P. King, R.N., F.R.S., in the Survey of the Straits of Magellan. Transactions of the Linnean Society of London 17 (3):315-360. (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); Cockerell, 1899Cockerell, T.D.A. 1899. Catálogo de las Abejas de Mexico. Biblioteca Agricola de las Secretaria de Fomento, Mexico, 1-20. (distribution); Cockerell, 1912Cockerell, T.D.A. 1912. New bees from Brazil. Psyche 19 (2):41-61. (distribution). - As Bombus cayennensis: - Lepeletier, 1836Lepeletier de Saint-Fargeau, A. 1836. Histoire Naturelles des Insectes. Hyménoptères. Vol. 1. Librairie Encyclopédique de Roret, Paris. 1-547. (distribution); Handlirsch, 1888Handlirsch, A. 1888. Die Hummelsammlung des k. k. naturhistorischen Hofmuseums. Annalen des Naturhistorischen Museums in Wien 3:209-250. (distribution); Dalla Torre, 1896Dalla Torre, C.G. 1896. Catalogus Hymenopterorum hucusque descriptorum systematicus et synonymicus, X. Apidae (Anthophila). Sumptibus Guilelmi Engelmann, 1-643. (distribution); Bodkin, 1918Bodkin, G.E. 1918. Notes on some British Guiana Hymenoptera (exclusive of the Formicidae). The Transactions of the Entomological Society of London 1917:297-321, pls. XXI-XXIII. (distribution); Alfken, 1933Alfken, J.D. 1933. Ergebnisse einer zoologischen Sammelreise nach Brasilien, inbesondere in das Amazonasgebeit, ausgeführt von Dr. H. Zerny. IX Teil. Hymenoptera: Apidae. Annalen des Naturhistorischen Museums in Wien 45:303-307. (distribution). - As Bombus cayennensis: - Lepeletier, 1836Lepeletier de Saint-Fargeau, A. 1836. Histoire Naturelles des Insectes. Hyménoptères. Vol. 1. Librairie Encyclopédique de Roret, Paris. 1-547. (distribution); Handlirsch, 1888Handlirsch, A. 1888. Die Hummelsammlung des k. k. naturhistorischen Hofmuseums. Annalen des Naturhistorischen Museums in Wien 3:209-250. (distribution); Dalla Torre, 1896Dalla Torre, C.G. 1896. Catalogus Hymenopterorum hucusque descriptorum systematicus et synonymicus, X. Apidae (Anthophila). Sumptibus Guilelmi Engelmann, 1-643. (distribution); Bodkin, 1918Bodkin, G.E. 1918. Notes on some British Guiana Hymenoptera (exclusive of the Formicidae). The Transactions of the Entomological Society of London 1917:297-321, pls. XXI-XXIII. (distribution); Alfken, 1933Alfken, J.D. 1933. Ergebnisse einer zoologischen Sammelreise nach Brasilien, inbesondere in das Amazonasgebeit, ausgeführt von Dr. H. Zerny. IX Teil. Hymenoptera: Apidae. Annalen des Naturhistorischen Museums in Wien 45:303-307. (distribution).
Bombus violaceus Lepeletier, 1836:473, ♀.Amérique septentrionale (Musée de M. Serville); Franklin, 1913Franklin, H.J. 1913. The Bombidae of the New World. Part II - Species south of the United States. Transactions of the American Entomological Society 39 (2):73-200.:110, Types (probably still extant in the collection of the National Museum of France at Paris). - 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); Cresson, 1879Cresson, E.T. 1879. Catalogue of North American Apidae. Transactions of the American Entomological Society and Proceedings of the Entomological Section of the Academy of Natural Sciences 7:215-232. (distribution); Handlirsch, 1888Handlirsch, A. 1888. Die Hummelsammlung des k. k. naturhistorischen Hofmuseums. Annalen des Naturhistorischen Museums in Wien 3:209-250.:240 ( listed as synonym of Bombus cayennensis (Fabricius, 1798)), 241 ( listed as synonym of Bombus carbonarius Handlirsch, 1888); Franklin, 1913Franklin, H.J. 1913. The Bombidae of the New World. Part II - Species south of the United States. Transactions of the American Entomological Society 39 (2):73-200.:110 ( listed as synonym of Bombus kohli Cockerell, 1906).
Bombus medius Cresson, 1863:97, xw ?. Holotype xw, Utah (Coll. Smith. Inst.); Franklin, 1913Franklin, H.J. 1913. The Bombidae of the New World. Part II - Species south of the United States. Transactions of the American Entomological Society 39 (2):73-200.:124, Type (probably in the collection of the United States National Museum). - Cresson, 1879Cresson, E.T. 1879. Catalogue of North American Apidae. Transactions of the American Entomological Society and Proceedings of the Entomological Section of the Academy of Natural Sciences 7:215-232. (distribution); Franklin, 1913Franklin, H.J. 1913. The Bombidae of the New World. Transactions of the American Entomological Society 38 (3/4):177-486. (distribution); Franklin, 1913Franklin, H.J. 1913. The Bombidae of the New World. Part II - Species south of the United States. Transactions of the American Entomological Society 39 (2):73-200. (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, 1932Cockerell, T.D.A. 1932. Bees (Hymenoptera, Apoidea) collected at Chichen Itzá, Yucatan, by the Harvard expeditions of 1929-1930. Bulletin of the Brooklyn Entomological Society 27:9-17. (distribution); Cockerell, 1949Cockerell, T.D.A. 1949. Bees from Central America, principally Honduras. Proceedings of the United States National Museum 98 (No. 3233):429-490. (distribution); Michener, 1954Michener, C.D. 1954. Bees of Panamá. Bulletin of the American Museum of Natural History 104 (1):1-176. (distribution); Michener & LaBerge, 1954Michener, C.D. & W.E. LaBerge 1954. A large Bombus nest from Mexico. Psyche 61 (2):63-67. (distribution); Maes, 1993Maes, J.-M. 1993. Catalogo de los Apoidea (Hymenoptera) de Nicaragua. Revista Nicaraguense de Entomologia 26:11-30. (distribution); Abrahamovich & Díaz, 2002Abrahamovich, A.H. & N.B. Díaz 2002. Bumble bees of the Neotropical Region (Hymenoptera: Apidae). Biota Colombiana 3 (2):199-214. (distribution); Ruíz-Cancino & Coronado-Blanco, 2002Ruíz-Cancino, E. & J.M. Coronado-Blanco 2002. Artrópodos terrestres de los estados de Tamaulipas y Nuevo León, México. Serie Publicaciones Cientificas No. 4:1-376. (distribution); Yáñez-Ordóñez & Hinojosa-Díaz, 2004Yáñez-Ordóñez, O. & I. Hinojosa-Díaz 2004. La colección himenopterológica (Insecta) del Museo de Zoología Alfonso L. Herrera de la Facultad de Ciencias, UNAM, México. Acta Zoológica Mexicana (nueva serie) 20 (1):167-197. (distribution); Dardón et al., 2016Dardón, M.J., C.L. Yurrita & M. Vásquez 2016. Catalogue of the bees of the genus Bombus Latreille, 1802 (Hymenoptera: Apoidea: Apidae) in Guatemala. Revista Cientifica 26 (1):9-19. (distribution); Sagot et al., 2018Sagot, P, J. Mérida, R. Ayala & R. Vandame 2018. Situación actual del conocimiento de la fauna de abejas (Apoidea: Anthophila) del estado de Chiapas, México. In: (Ed.). Memorias X Congreso Mesoamericano sobre Abejas Nativas. 191-2011. (distribution); Dardón et al., 2020Dardón, M.J., C.L. Yurrita, P. Landaverde-González P. & A.R. Vásquez M. 2020. Rediscovering the diversity of Guatemalan bumble bees (Hymenoptera: Apoidea: Bombus Latreille, 1802). International Journal of Scientific Research in Biological Sciences 7 (2):1-14. (distribution); Nava-Bolaños & Osorio-Olvera, 2022Nava-Bolaños, A. & L. Osorio-Olvera 2022. Estado del arte del conocimiento de biodiversidad de los polinizadores de México. Revista Mexicana de Biodiversidad 93:1-77. (distribution).
Bombus violaceus Holmberg, 1879:154 - Handlirsch, 1888Handlirsch, A. 1888. Die Hummelsammlung des k. k. naturhistorischen Hofmuseums. Annalen des Naturhistorischen Museums in Wien 3:209-250.:241 ( listed as synonym of Bombus cayennensis (Fabricius, 1798)).
Bombus carbonarius Handlirsch, 1888:241, ♂♀xw. Franklin, 1913Franklin, H.J. 1913. The Bombidae of the New World. Part II - Species south of the United States. Transactions of the American Entomological Society 39 (2):73-200.:111, Types (k. k. Hofmuseum at Vienna). Replacement name for Bombus violaceus Holmberg, 1879 by Handlirsch, 1888Handlirsch, A. 1888. Die Hummelsammlung des k. k. naturhistorischen Hofmuseums. Annalen des Naturhistorischen Museums in Wien 3:209-250.:241. - Handlirsch, 1888Handlirsch, A. 1888. Die Hummelsammlung des k. k. naturhistorischen Hofmuseums. Annalen des Naturhistorischen Museums in Wien 3:209-250. (distribution); Dalla Torre, 1896Dalla Torre, C.G. 1896. Catalogus Hymenopterorum hucusque descriptorum systematicus et synonymicus, X. Apidae (Anthophila). Sumptibus Guilelmi Engelmann, 1-643. (distribution); Franklin, 1913Franklin, H.J. 1913. The Bombidae of the New World. Part II - Species south of the United States. Transactions of the American Entomological Society 39 (2):73-200.:110 ( listed as synonym of Bombus kohli Cockerell, 1906).
Bombus kohli Cockerell, 1906:75 Replacement name for Bombus carbonarius Handlirsch, 1888 by Cockerell, 1906Cockerell, T.D.A. 1906. Descriptions and records of bees. - XII. The Annals and Magazine of Natural History ser. 7: v. 18 (103):69-75.:75. - Franklin, 1913Franklin, H.J. 1913. The Bombidae of the New World. Transactions of the American Entomological Society 38 (3/4):177-486. (distribution); Franklin, 1913Franklin, H.J. 1913. The Bombidae of the New World. Part II - Species south of the United States. Transactions of the American Entomological Society 39 (2):73-200. (distribution); Moure, 1943Moure, J.S. 1943. Abelhas de Batatais (Hym. Apoidea). Arquivos do Museu Paranaense 3:145-203. (distribution).