Megachile latimanus Say, 1823 - Cockerell, 1898Cockerell, T.D.A. 1898. Some bees of the genus Megachile from New Mexico and Colorado. The Annals and Magazine of Natural History ser. 7: v. 1:125-130. (distribution); Cockerell, 1900Cockerell, T.D.A. 1900. The New Mexico bees of the genus Megachile and a new Andrena. The Annals and Magazine of Natural History ser. 7: v. 6:7-20. (distribution); Cockerell, 1901Cockerell, T.D.A. 1901. Flower and insect records from New Mexico. Entomological News 12 (2):38-43. (distribution); Cockerell, 1902Cockerell, T.D.A. 1902. Flowers and insects in New Mexico. American Naturalist 36 (430):809-817. (distribution); Cockerell, 1903Cockerell, T.D.A. 1903. A catalogue of the bees of California. Psyche 10:74-78. (distribution); Cockerell, 1904Cockerell, T.D.A. 1904. Some bees from San Miguel County, New Mexico. The Entomologist 37 (488):5-9. (distribution); Cockerell, 1906Cockerell, T.D.A. 1906. The bees of Florissant, Colorado. Bull. American Mus. Nat. Hist. 22:419-455. (distribution); Cockerell, 1906Cockerell, T.D.A. 1906. The bees of New Mexico. Transactions of the American Entomological Society 32:289-314. (distribution); Cockerell, 1907Cockerell, T.D.A. 1907. The bees of Boulder County, Colorado. University of Colorado Studies 4:239-259. (distribution); Lovell & Cockerell, 1907Lovell, J.H. & Cockerell, T.D.A. 1907. The Megachilidae of southern Maine. Psyche 14 (1):15-21. (distribution); Cockerell, 1911Cockerell, T.D.A. 1911. Some bees from western Canada. The Canadian Entomologist 43 (1):33-34. (distribution); Cockerell, 1912Cockerell, T.D.A. 1912. Canadian bees in the British Museum. The Canadian Entomologist 44:354-358. (distribution); Cockerell, 1919Cockerell, T.D.A. 1919. Bees in the collection of the United States National Museum. Proceedings of the United States National Museum 55 (2264):167-221. (distribution); Mitchell, 1936Mitchell, T.B. 1936. A revision of the genus Megachile in the Nearctic Region. Part IV. Taxonomy of subgenera Xanthosarus, Phaenosarus, Megachiloides and Derotropis (Hymenoptera: Megachilidae). Transactions of the American Entomological Society 62 (2):117-166. (distribution); Mitchell, 1962Mitchell, T.B. 1962. Bees of the Eastern United States. Volume II. Technical bulletin (North Carolina Agricultural Experiment Station) 152:1-557. (distribution).
Megachile acuta Smith, 1853:192, ♀. ♀, North America; Trenton Falls; New York; ♀, Mexico; Cockerell, 1905Cockerell, T.D.A. 1905. Notes on some bees in the British Museum. Transactions of the American Entomological Society 31:309-364.:337, Type ♀ (British Museum). - Smith, 1853Smith, F. 1853. Catalogue of Hymenopterous Insects in the Collection of the British Museum. Part I. Andrenidae and Apidae. London. 197 pp, 6 pl. (distribution); Lovell & Cockerell, 1907Lovell, J.H. & Cockerell, T.D.A. 1907. The Megachilidae of southern Maine. Psyche 14 (1):15-21.:18 ( listed as synonym of Megachile latimanus Say, 1823); Mitchell, 1936Mitchell, T.B. 1936. A revision of the genus Megachile in the Nearctic Region. Part IV. Taxonomy of subgenera Xanthosarus, Phaenosarus, Megachiloides and Derotropis (Hymenoptera: Megachilidae). Transactions of the American Entomological Society 62 (2):117-166.:131 ( listed as synonym of Megachile latimanus Say, 1823).
Megachile vidua Smith, 1853 Cockerell, 1905Cockerell, T.D.A. 1905. Notes on some bees in the British Museum. Transactions of the American Entomological Society 31:309-364.:337, Type ♀ (British Museum); Mitchell, 1935Mitchell, T.B. 1935. A revision of the genus Megachile in the Nearctic Region. Part III. Taxonomy of subgenera Anthemois and Delomegachile (Hymenoptera: Megachilidae). Transactions of the American Entomological Society 61 (3):155-205.:203, Type ♀ (Ent. Club., B. M., 1844-12). - Cockerell, 1903Cockerell, T.D.A. 1903. A catalogue of the bees of California. Psyche 10:74-78. (distribution); Cockerell, 1906Cockerell, T.D.A. 1906. The bees of Florissant, Colorado. Bull. American Mus. Nat. Hist. 22:419-455. (distribution); Cockerell, 1907Cockerell, T.D.A. 1907. The bees of Boulder County, Colorado. University of Colorado Studies 4:239-259. (distribution); Lovell & Cockerell, 1907Lovell, J.H. & Cockerell, T.D.A. 1907. The Megachilidae of southern Maine. Psyche 14 (1):15-21. (distribution); Cockerell, 1912Cockerell, T.D.A. 1912. Canadian bees in the British Museum. The Canadian Entomologist 44:354-358. (distribution); Cockerell, 1916Cockerell, T.D.A. 1916. Bees from the northern peninsula of Michigan. Occ. Papers Mus. Zool. Univ. of Michigan 23:1-10. (distribution); Cockerell, 1919Cockerell, T.D.A. 1919. The bees of the Rocky Mountain National Park (Hymenop.). Entomological News and Proceedings of the Entomological Section of the Academy of Natural Sciences of Philadelphia 30 (10):286-294. (distribution); Mitchell, 1928Mitchell, T.B. 1928. Sex anomalies in the genus Megachile, with descriptions of new species (Hymenoptera: Megachilidae). Transactions of the American Entomological Society 54 (4):321-383. (distribution); Mitchell, 1935Mitchell, T.B. 1935. A revision of the genus Megachile in the Nearctic Region. Part III. Taxonomy of subgenera Anthemois and Delomegachile (Hymenoptera: Megachilidae). Transactions of the American Entomological Society 61 (3):155-205. (distribution); Cockerell, 1937Cockerell, T.D.A. 1937. Bees collected by Mr. and Mrs. J. L. Sperry and Mr. R. H. Andrews in Arizona. Bulletin of the Southern California Academy of Sciences 36 (3):107-110. (distribution); Raw, 2002Raw, A. 2002. New combinations and synonymies of leafcutter and mason bees of the Americas (Megachile, Hymenoptera, Megachilidae). Zootaxa 71:1-43.:36 ( listed as synonym of Megachile latimanus Say, 1823).
Megachile frigida Smith, 1853:193 - Lovell & Cockerell, 1907Lovell, J.H. & Cockerell, T.D.A. 1907. The Megachilidae of southern Maine. Psyche 14 (1):15-21.:18 ( listed as synonym of Megachile vidua Smith, 1853); Mitchell, 1935Mitchell, T.B. 1935. A revision of the genus Megachile in the Nearctic Region. Part III. Taxonomy of subgenera Anthemois and Delomegachile (Hymenoptera: Megachilidae). Transactions of the American Entomological Society 61 (3):155-205.:200 ( listed as synonym of Megachile vidua Smith, 1853); Wilson et al., 2010Wilson, J.S., L.E. Wilson, L.D. Loftis & T. Griswold 2010. The montane bee fauna of north central Washington, USA, with floral associations. Western North American Naturalist 70 (2):198-207. (distribution).
Megachile femorata Smith, 1853:188 - Mitchell, 1936Mitchell, T.B. 1936. A revision of the genus Megachile in the Nearctic Region. Part IV. Taxonomy of subgenera Xanthosarus, Phaenosarus, Megachiloides and Derotropis (Hymenoptera: Megachilidae). Transactions of the American Entomological Society 62 (2):117-166.:131 ( listed as synonym of Megachile latimanus Say, 1823).
Megachile scrobiculata Provancher, 1882:228 - Mitchell, 1935Mitchell, T.B. 1935. A revision of the genus Megachile in the Nearctic Region. Part III. Taxonomy of subgenera Anthemois and Delomegachile (Hymenoptera: Megachilidae). Transactions of the American Entomological Society 61 (3):155-205.:200 ( listed as synonym of Megachile vidua Smith, 1853).
Megachile grandis Provancher, 1882:230 - Mitchell, 1935Mitchell, T.B. 1935. A revision of the genus Megachile in the Nearctic Region. Part III. Taxonomy of subgenera Anthemois and Delomegachile (Hymenoptera: Megachilidae). Transactions of the American Entomological Society 61 (3):155-205.:200 ( listed as synonym of Megachile vidua Smith, 1853).
Megachile centuncularis Provancher, 1882:230 - Mitchell, 1935Mitchell, T.B. 1935. A revision of the genus Megachile in the Nearctic Region. Part III. Taxonomy of subgenera Anthemois and Delomegachile (Hymenoptera: Megachilidae). Transactions of the American Entomological Society 61 (3):155-205.:200 ( listed as synonym of Megachile vidua Smith, 1853).
Megachile frigida Provancher, 1882:227 - Mitchell, 1936Mitchell, T.B. 1936. A revision of the genus Megachile in the Nearctic Region. Part IV. Taxonomy of subgenera Xanthosarus, Phaenosarus, Megachiloides and Derotropis (Hymenoptera: Megachilidae). Transactions of the American Entomological Society 62 (2):117-166.:131 ( listed as synonym of Megachile latimanus Say, 1823).
Megachile mendica Provancher, 1882:231 - Mitchell, 1936Mitchell, T.B. 1936. A revision of the genus Megachile in the Nearctic Region. Part IV. Taxonomy of subgenera Xanthosarus, Phaenosarus, Megachiloides and Derotropis (Hymenoptera: Megachilidae). Transactions of the American Entomological Society 62 (2):117-166.:131 ( listed as synonym of Megachile latimanus Say, 1823).
Megachile monardarum Cockerell, 1900:11, ♀. ♀, Hill near Beulah, Aug. 19 (leg. W. Porter); ♀, Rio Ruidoso, 6500-6700 feet, July 27-31 (leg. Townsend). - Cockerell, 1904Cockerell, T.D.A. 1904. Some bees from San Miguel County, New Mexico. The Entomologist 37 (488):5-9. (distribution); Mitchell, 1935Mitchell, T.B. 1935. A revision of the genus Megachile in the Nearctic Region. Part III. Taxonomy of subgenera Anthemois and Delomegachile (Hymenoptera: Megachilidae). Transactions of the American Entomological Society 61 (3):155-205.:200 ( listed as synonym of Megachile vidua Smith, 1853).
Megachile willughbiella sensu Cockerell, 1901:283 - Mitchell, 1935Mitchell, T.B. 1935. A revision of the genus Megachile in the Nearctic Region. Part III. Taxonomy of subgenera Anthemois and Delomegachile (Hymenoptera: Megachilidae). Transactions of the American Entomological Society 61 (3):155-205.:200 ( listed as synonym of Megachile vidua Smith, 1853).