Bombus laboriosus Fabricius, 1804:352,Carolina (Mus. Dom. Bose); 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.:96, Types, Col. C. T. Bingham failed to locate Smith's type specimens of this species in the collection of the British Mu seum for me. Yet it is, of course, possible that they may still be extant. Synonymized with Bombus ephippiatus Say, 1837 by Handlirsch, 1888Handlirsch, A. 1888. Die Hummelsammlung des k. k. naturhistorischen Hofmuseums. Annalen des Naturhistorischen Museums in Wien 3:209-250.:233. - 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.:95 ( listed as synonym of Bombus montezumae Cockerell, 1908); 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.:17 ( listed as synonym of Bombus weisi Friese, 1903). - As Apathus laboriosus: - Cresson, 1872Cresson, E.T. 1872. Hymenoptera Texana. Transactions of the American Entomological Society 4:153-292. (distribution). - As Emphoropsis laboriosa laboriosa: - Krombein et al., 1979Krombein, K.V., P.D. Hurd, D.R. Smith & B.D. Burks 1979. Catalog of Hymenoptera in America North of Mexico. Volume 2. Apocrita (Aculeata). Smithsonian Institution Press, Washington D.C. 1199-2209. (distribution). - As Psithyrus laboriosus: - Cockerell, 1916Cockerell, T.D.A. 1916. Bees from the northern peninsula of Michigan. Occ. Papers Mus. Zool. Univ. of Michigan 23:1-10. (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); Bequaert, 1920Bequaert, J.C. 1920. Hymenoptera collected near Boston, Mass., with description of a variety of Bombus affinis. Psyche 27 (1):6-12. (distribution).
Anthophora Floridana Smith, 1854:339 - Smith, 1854Smith, F. 1854. Catalogue of Hymenopterous Insects in the Collection of the British Museum. Part II. Apidae. London. 465 pp, 8 pl. (distribution); Cresson, 1869Cresson, E.T. 1869. A list of the North American species of the genus Anthophora, with descriptions of new species. Transactions of the American Entomological Society 2:289-293. (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); Mitchell, 1962Mitchell, T.B. 1962. Bees of the Eastern United States. Volume II. Technical bulletin (North Carolina Agricultural Experiment Station) 152:1-557.:332 ( listed as synonym of Emphoropsis laboriosa (Fabricius, 1804)); Krombein et al., 1979Krombein, K.V., P.D. Hurd, D.R. Smith & B.D. Burks 1979. Catalog of Hymenoptera in America North of Mexico. Volume 2. Apocrita (Aculeata). Smithsonian Institution Press, Washington D.C. 1199-2209.:2169 ( listed as synonym of Emphoropsis laboriosa laboriosa (Fabricius, 1804)). - As Emphoropsis floridana: - Cockerell, 1905Cockerell, T.D.A. 1905. Some bees collected by the Rev. G. Birkmann at Fedor, Texas. The Canadian Entomologist 37:265-267. (distribution); Cockerell, 1905Cockerell, T.D.A. 1905. New american bees. Proceedings of the Biological Society of Washington 18:177-184. (distribution); Cockerell, 1906Cockerell, T.D.A. 1906. The North American bees of the family Anthophoridae. Transactions of the American Entomological Society 32 (1):63-116. (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); Michener, 1947Michener, C.D. 1947. Bees of a limited area in southern Mississippi (Hymenoptera; Apoidea). The American Midland Naturalist 38 (2):443-455. (distribution). - As Emphoropsis floridanus: - Cockerell, 1903Cockerell, T.D.A. 1903. A catalogue of the bees of California. Psyche 10:74-78. (distribution); Cockerell, 1905Cockerell, T.D.A. 1905. The bees of southern California. - VII. Bulletin of the Southern California Academy of Sciences 4 (1):13-15. (distribution). - As Habropoda floridana: - As Podalirius floridanus: - Dalla Torre, 1896Dalla Torre, C.G. 1896. Catalogus Hymenopterorum hucusque descriptorum systematicus et synonymicus, X. Apidae (Anthophila). Sumptibus Guilelmi Engelmann, 1-643. (distribution), 268 (comb. nov.).