Heriades opuntiæ Cockerell, 1897:139, ♀. ♀, Soledad Cañon, N. M., May 22 (leg. Ckll.). - As Ashmeadiella opuntiae: - Cockerell, 1906Cockerell, T.D.A. 1906. The bees of New Mexico. Transactions of the American Entomological Society 32:289-314. (distribution); Michener, 1936Michener, C.D. 1936. Some North American Osmiinae (Hymenoptera, Apoidea). American Museum Novitates 875:1-30. (distribution); Michener, 1939Michener, C.D. 1939. A revision of the genus Ashmeadiella (Hymen., Megachilidae). The American Midland Naturalist 22 (1):1-84. (distribution); Michener, 1949Michener, C.D. 1949. Records and descriptions of american Megachilid bees (Hymenoptera). Journal of the Kansas Entomological Society 22 (2):41-59. (distribution); Michener, 1951Michener, C.D. 1951. Records of small Megachilid bees (Hymenoptera). Journal of the Kansas Entomological Society 24 (2):50-55. (distribution); Michener, 1954Michener, C.D. 1954. Records and descriptions of North American Megachilid bees. Journal of the Kansas Entomological Society 27 (2):65-78. (distribution); Hurd & Michener, 1955Hurd, P.D. Jr. & C.D. Michener 1955. The Megachilidae bees of California (Hymenoptera: Megachilidae). Bulletin of the California insect survey 3:1-247. (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); 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); Esperanza de Pedro, 2021Esperanza de Pedro, D. 2021. . :. (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).
Ashmeadiella submaxima Michener, 1936:3, ♂. Holotype ♂, Walsenburg, Colorado, about 37° 37' N., 104° 47' W., and about 6200 feet altitude, June 14, 1919 (The American Museum of Natural History, leg. F.E. Lutz). - Michener, 1939Michener, C.D. 1939. A revision of the genus Ashmeadiella (Hymen., Megachilidae). The American Midland Naturalist 22 (1):1-84.:51 ( listed as synonym of Ashmeadiella opuntiae (Cockerell, 1897)); Hurd & Michener, 1955Hurd, P.D. Jr. & C.D. Michener 1955. The Megachilidae bees of California (Hymenoptera: Megachilidae). Bulletin of the California insect survey 3:1-247.:192 ( listed as synonym of Ashmeadiella opuntiae (Cockerell, 1897)); 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.:2028 ( listed as synonym of Ashmeadiella opuntiae (Cockerell, 1897)).
Ashmeadiella arizonensis Michener, 1936:3, ♂. Holotype ♂, Kits Peak, Rincon Baboquivari Mountains, Arizona, August 1-4, 1916 (The American Museum of Natural History); Michener, 1939Michener, C.D. 1939. A revision of the genus Ashmeadiella (Hymen., Megachilidae). The American Midland Naturalist 22 (1):1-84.:53, Type ♂ (American Museum of Natural History). Synonymized with Ashmeadiella opuntiae (Cockerell, 1897) by Hurd & Michener, 1955Hurd, P.D. Jr. & C.D. Michener 1955. The Megachilidae bees of California (Hymenoptera: Megachilidae). Bulletin of the California insect survey 3:1-247.:192. - Michener, 1939Michener, C.D. 1939. A revision of the genus Ashmeadiella (Hymen., Megachilidae). The American Midland Naturalist 22 (1):1-84. (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.:2028 ( listed as synonym of Ashmeadiella opuntiae (Cockerell, 1897)).