Phileremus pulchellus Cresson, 1878:84, ♂? ♀. 3 ♂♀, Colorado (leg. Ridings); Hurd & Linsley, 1972Hurd, P.D. Jr. & E.G. Linsley 1972. Parasitic bees of the genus Holcopasites Ashmead (Hymenoptera: Apoidea). Smithsonian Contributions to Zoology 114:1-41.:22, Type (Academy of Natural Sciences, Philadelphia). - As Holcopasites pulchellus: - Cockerell, 1934Cockerell, T.D.A. 1934. Records of Western bees. American Museum Novitates 697:1-15. (distribution); Hurd & Linsley, 1972Hurd, P.D. Jr. & E.G. Linsley 1972. Parasitic bees of the genus Holcopasites Ashmead (Hymenoptera: Apoidea). Smithsonian Contributions to Zoology 114:1-41. (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); 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).
Neopasites robertsoni Crawford, 1906:283, Hurd & Linsley, 1972Hurd, P.D. Jr. & E.G. Linsley 1972. Parasitic bees of the genus Holcopasites Ashmead (Hymenoptera: Apoidea). Smithsonian Contributions to Zoology 114:1-41.:22, Type (U.S. National Museum of Natural History, Washington, D.C.). - Cockerell, 1911Cockerell, T.D.A. 1911. Records of bees. The Canadian Entomologist 43 (11):389-391. (distribution); Linsley, 1943Linsley, E.G. 1943. A revision of the genus Neopasites (Hymenoptera: Nomadidae). Transactions of the American Entomological Society 69 (2 and 3):119-140. (distribution); Hurd & Linsley, 1972Hurd, P.D. Jr. & E.G. Linsley 1972. Parasitic bees of the genus Holcopasites Ashmead (Hymenoptera: Apoidea). Smithsonian Contributions to Zoology 114:1-41.:22 ( listed as synonym of Holcopasites calliopsidis carinatus (Linsley, 1943)); 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.:2086 ( listed as synonym of Holcopasites pulchellus (Cresson, 1878)).
Neopasites robertsoni pubescens Linsley, 1943:131, ♂. Holotype ♂, Gallina Creek, Jemez Mountains, New Mexico; altitude 8,500 ft., July 24, 1930 (Calif. Acad. Sci. Ent., no. 4353, leg. J.C. Chamberlin); Hurd & Linsley, 1972Hurd, P.D. Jr. & E.G. Linsley 1972. Parasitic bees of the genus Holcopasites Ashmead (Hymenoptera: Apoidea). Smithsonian Contributions to Zoology 114:1-41.:22, Type (California Academy of Sciences, San Francisco). Synonymized with Holcopasites calliopsidis carinatus (Linsley, 1943) by Hurd & Linsley, 1972Hurd, P.D. Jr. & E.G. Linsley 1972. Parasitic bees of the genus Holcopasites Ashmead (Hymenoptera: Apoidea). Smithsonian Contributions to Zoology 114:1-41.:22. - 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.:2086 ( listed as synonym of Holcopasites pulchellus (Cresson, 1878)).