Agapostemon coloradensis Crawford, 1901 Muma, 1952Muma, M.H. 1952. Insect types in the collections of the University of Nebraska State Museum. Bulletin of the University of Nebraska State Museum 3 (8):1-35.:15, Types ♀♀ (University of Nebraska State Museum), Lectotype ♀ (U.S. National Museum), designated by Roberts, 1972Roberts, R.B. 1972. Revision of the bee genus Agapostemon (Hymenoptera: Halictidae). The University of Kansas Science Bulletin 49 (9):437-590.:473. - Cockerell, 1907Cockerell, T.D.A. 1907. The bees of Boulder County, Colorado. University of Colorado Studies 4:239-259. (distribution); Cockerell, 1927Cockerell, T.D.A. 1927. Bees of the genera Agapostemon and Augochlora in the collection of the California Academy of Sciences. The Pan-Pacific Entomologist 3 (4):153-162. (distribution); Rasmussen, 2012Rasmussen, C. 2012. Joseph Vachal (1838–1911): French entomologist and politician. Zootaxa 3442:1-52.:23 ( listed as synonym of Agapostemon coloradinus (Vachal, 1903)).
Halictus coloradinus Vachal, 1903:90, Sandhouse, 1936Sandhouse, G.A. 1936. The bees of the genus Agapostemon (Hymenoptera: Apoidea) occuring in the United States. Journal of the Washington Academy of Sciences 26 (2):70-83.:78, Lectotype ♀ (United States National Museum). - As Agapostemon coloradinus: - Sandhouse, 1936Sandhouse, G.A. 1936. The bees of the genus Agapostemon (Hymenoptera: Apoidea) occuring in the United States. Journal of the Washington Academy of Sciences 26 (2):70-83. (distribution), 77 (comb. nov.); Roberts, 1972Roberts, R.B. 1972. Revision of the bee genus Agapostemon (Hymenoptera: Halictidae). The University of Kansas Science Bulletin 49 (9):437-590. (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).