Megachile simplex Provancher, 1882:226 (key), 229, ♂ - 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.:171 ( listed as synonym of Megachile inermis Provancher, 1888); Mitchell, 1962Mitchell, T.B. 1962. Bees of the Eastern United States. Volume II. Technical bulletin (North Carolina Agricultural Experiment Station) 152:1-557.:126 ( listed as synonym of Megachile inermis Provancher, 1888); 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.:2056 ( listed as synonym of Megachile inermis Provancher, 1888).
Megachile inermis Provancher, 1888:323, 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.:173, Type ♂ (Mus. Dept. Publ. Instruc. Quebec, no. 873). - 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); Mitchell, 1962Mitchell, T.B. 1962. Bees of the Eastern United States. Volume II. Technical bulletin (North Carolina Agricultural Experiment Station) 152:1-557. (distribution); 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).
Megachile simplicissima Dalla Torre, 1896:449, no descr. - 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.:171 ( listed as synonym of Megachile inermis Provancher, 1888); Mitchell, 1962Mitchell, T.B. 1962. Bees of the Eastern United States. Volume II. Technical bulletin (North Carolina Agricultural Experiment Station) 152:1-557.:126 ( listed as synonym of Megachile inermis Provancher, 1888); 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.:2056 ( listed as synonym of Megachile inermis Provancher, 1888).
Megachile sapellonis Cockerell, 1900:7, ♀. 1 ♀, Beulah, Aug. 23 (leg. W. Porter); 1 ♀, South Fork, Eagle Creek, White Mts., about 8100 feet, Aug. 13 (leg. Townsend); 2 ♀♀, Beulah, Sapello Cañon, N. M., July 26 (leg. W. Porter); 2 ♀♀, Beulah, Aug, 18 (leg. W. Porter); 4 ♀♀, Harvey's Ranch, 9600 feet, Aug. 22 (leg. Porter & Cockerell). - 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 New Mexico. Transactions of the American Entomological Society 32:289-314. (distribution); Cockerell, 1911Cockerell, T.D.A. 1911. Records of bees. The Canadian Entomologist 43 (11):389-391. (distribution); Cockerell, 1928Cockerell, T.D.A. 1928. Some bees from Utah. Psyche 35 (4):232-234. (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.:171 ( listed as synonym of Megachile inermis Provancher, 1888); Mitchell, 1962Mitchell, T.B. 1962. Bees of the Eastern United States. Volume II. Technical bulletin (North Carolina Agricultural Experiment Station) 152:1-557.:126 ( listed as synonym of Megachile inermis Provancher, 1888); 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.:2056 ( listed as synonym of Megachile inermis Provancher, 1888).
Megachile temporalis ♂ Friese, 1903:247, ♂. 1♂, Pikes Peak (Colorado), Juli (leg. Fruhstorfer). - 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.:171 ( listed as synonym of Megachile inermis Provancher, 1888); Mitchell, 1962Mitchell, T.B. 1962. Bees of the Eastern United States. Volume II. Technical bulletin (North Carolina Agricultural Experiment Station) 152:1-557.:126 ( listed as synonym of Megachile inermis Provancher, 1888), 179 ( listed as synonym of Megachile pugnata pugnata Say, 1837); 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.:2056 ( listed as synonym of Megachile inermis Provancher, 1888).
Megachile decipiens Lovell & Cockerell, 1907:19, ♂. 2 ♂♂, Maine, July 10th. - Cockerell, 1913Cockerell, T.D.A. 1913. Descriptions and records of bees. - LII. The Annals and Magazine of Natural History ser. 8: v. 11 (66):530-542. (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); 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.:171 ( listed as synonym of Megachile inermis Provancher, 1888); Mitchell, 1962Mitchell, T.B. 1962. Bees of the Eastern United States. Volume II. Technical bulletin (North Carolina Agricultural Experiment Station) 152:1-557.:126 ( listed as synonym of Megachile inermis Provancher, 1888); 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.:2056 ( listed as synonym of Megachile inermis Provancher, 1888).