Halictus provancheri nearcticus (Vachal) - Cockerell, 1911Cockerell, T.D.A. 1911. Descriptions and records of bees. - XXXIX. The Annals and Magazine of Natural History ser. 8: v. 8 (47):660-673. (distribution); Cockerell, 1919Cockerell, T.D.A. 1919. The bees of Gold Hill, Colorado. The Canadian Entomologist 51:271-273. (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.:1956 ( listed as synonym of Halictus confusus arapahonum Cockerell, 1906).
Halictus confusus Smith, 1853:70, ♂♀. ♂, ♀, Trenton Falls, New York; Hudson's Bay (E. Doubleday and G. Barnston, Esqs.); Cockerell, 1905Cockerell, T.D.A. 1905. Notes on some bees in the British Museum. Transactions of the American Entomological Society 31:309-364.:350, Type ♀ (British Museum). - Kuhlmann, Kuhlmann, M. . in lit. :. (listed); Cockerell, 1898Cockerell, T.D.A. 1898. New and little-known bees. The Canadian Entomologist 30:50-53. (distribution); Mitchell, 1960Mitchell, T.B. 1960. Bees of the Eastern United States. Volume I. Technical bulletin (North Carolina Agricultural Experiment Station) 141:1-538. (distribution); Schwarz et al., 1996Schwarz, M., F. Gusenleitner, P. Westrich & H. Dathe 1996. Katalog der Bienen Österreichs, Deutschlands und der Schweiz (Hymenoptera, Apidae). Entomofauna Suppl. 8:1-398. (distribution), 64 (listed); Amiet et al., 2001Amiet, F., M. Herrmann, A. Müller & R. Neumeyer 2001. Apidae 3 - Halictus, Lasioglossum. 1-208.:22 (listed); Dathe, H.H., 2001Dathe, H.H. 2001. Apidae. In: Dathe, H., A. Taeger & S.M. Blank (Ed.). Verzeichnis der Hautflügler Deutschlands (Entomofauna Germanica, Band 4). 143-155. (distribution), 148 (distribution); Bieri, 2002Bieri, S. 2002. Bienen und Wespen des Fürstentums Liechtenstein. 1-160. (distribution); Pascarella, 2006Pascarella, J.B. 2006. The bees of Florida. . (distribution); Straka et al., 2007Straka, J., P. Bogusch & A. Pridal 2007. Apoidea: Apiformes (včely). In: Bogusch, P., J. Straka & P. Kment (Ed.). Annotated checklist of the Aculeata (Hymenoptera) of the Czech Republic and Slovakia. 241-299. (distribution); Gogala, 2009Gogala, A. 2009. Bee fauna of Slovenia: checklist of species (Hymenoptera: Apoidea). . (distribution); Tomozei, B., 2012Tomozei, B. 2012. Bees of Romania. . (distribution); Owens et al., 2018Owens, B.E., L. Allain, E.C. van Gorder, J.L. Bossart & C.E. Carlton 2018. The bees (Hymenoptera: Apoidea) of Louisiana: An updated, annotated checklist. Proceedings of the Entomological Society of Washington 120 (2):272-307. (distribution). - As Halictus confusus confusus: - 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). - As Seladonia confusa: - Kuhlmann, Kuhlmann, M. . in lit. :. (listed); Banaszak, 2000Banaszak, J. 2000. A checklist of the bee species (Hymenoptera, Apoidea) of Poland with remarks on their taxonomy and zoogeography: revised version. Fragmenta Faunistica 43 (14):135-193. (distribution).
Halictus constrictus Provancher, 1882:199 (key), 202, ♀. Sandhouse, 1941Sandhouse, G.A. 1941. The american bees of the subgenus Halictus. Entomologica Americana 21:23-38 + 1 pl.:34, Type (Quebec Provincial Museum). - Kuhlmann, Kuhlmann, M. . in lit. :. ( listed as synonym of Halictus confusus Smith, 1853); Sandhouse, 1941Sandhouse, G.A. 1941. The american bees of the subgenus Halictus. Entomologica Americana 21:23-38 + 1 pl.:33 ( listed as synonym of Halictus provancheri Dalla Torre, 1896); Mitchell, 1960Mitchell, T.B. 1960. Bees of the Eastern United States. Volume I. Technical bulletin (North Carolina Agricultural Experiment Station) 141:1-538.:333 ( listed as synonym of Halictus confusus Smith, 1853); 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.:1956 ( listed as synonym of Halictus confusus confusus Smith, 1853).
Halictus provancheri Dalla Torre, 1896:77, no descr. Replacement name for Halictus constrictus Provancher, 1882 by Dalla Torre, 1896Dalla Torre, C.G. 1896. Catalogus Hymenopterorum hucusque descriptorum systematicus et synonymicus, X. Apidae (Anthophila). Sumptibus Guilelmi Engelmann, 1-643.:77 (nec Smith). - Kuhlmann, Kuhlmann, M. . in lit. :. ( listed as synonym of Halictus confusus Smith, 1853); Cockerell, 1911Cockerell, T.D.A. 1911. Records of bees. The Canadian Entomologist 43 (11):389-391. (distribution); Sandhouse, 1941Sandhouse, G.A. 1941. The american bees of the subgenus Halictus. Entomologica Americana 21:23-38 + 1 pl. (distribution); Michener, 1947Michener, C.D. 1947. Bees of a limited area in southern Mississippi (Hymenoptera; Apoidea). The American Midland Naturalist 38 (2):443-455. (distribution); Mitchell, 1960Mitchell, T.B. 1960. Bees of the Eastern United States. Volume I. Technical bulletin (North Carolina Agricultural Experiment Station) 141:1-538.:333 ( listed as synonym of Halictus confusus Smith, 1853); 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.:1956 ( listed as synonym of Halictus confusus confusus Smith, 1853).
Halictus nearcticus Vachal, 1904:470, ♂♀. 1 ♀, ♂♂; Sandhouse, 1941Sandhouse, G.A. 1941. The american bees of the subgenus Halictus. Entomologica Americana 21:23-38 + 1 pl.:34, Type (Paris Museum); Rasmussen, 2012Rasmussen, C. 2012. Joseph Vachal (1838–1911): French entomologist and politician. Zootaxa 3442:1-52.:36, ♂♂, ♀♀ (MNHN; NMW). - Kuhlmann, Kuhlmann, M. . in lit. :. ( listed as synonym of Halictus confusus Smith, 1853); Sandhouse, 1941Sandhouse, G.A. 1941. The american bees of the subgenus Halictus. Entomologica Americana 21:23-38 + 1 pl.:34 ( listed as synonym of Halictus provancheri Dalla Torre, 1896); Mitchell, 1960Mitchell, T.B. 1960. Bees of the Eastern United States. Volume I. Technical bulletin (North Carolina Agricultural Experiment Station) 141:1-538.:333 ( listed as synonym of Halictus confusus Smith, 1853); 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.:1956 ( listed as synonym of Halictus confusus confusus Smith, 1853); Rasmussen, 2012Rasmussen, C. 2012. Joseph Vachal (1838–1911): French entomologist and politician. Zootaxa 3442:1-52. (distribution), 36 ( listed as synonym of Halictus confusus confusus Smith, 1853).
Halictus arapahonum Cockerell, 1906:316, ♀. ♀, Boulder, Colorado, June 4, 1905 (leg. W.P. Cockerell); Sandhouse, 1941Sandhouse, G.A. 1941. The american bees of the subgenus Halictus. Entomologica Americana 21:23-38 + 1 pl.:34, Type (U. S. National Museum). Synonymized with Halictus provancheri Dalla Torre, 1896 by Sandhouse, 1941Sandhouse, G.A. 1941. The american bees of the subgenus Halictus. Entomologica Americana 21:23-38 + 1 pl.:34. - Kuhlmann, Kuhlmann, M. . in lit. :. ( listed as synonym of Halictus confusus Smith, 1853); Cockerell, 1907Cockerell, T.D.A. 1907. The bees of Boulder County, Colorado. University of Colorado Studies 4:239-259. (distribution); Cockerell, 1919Cockerell, T.D.A. 1919. The bees of Gold Hill, Colorado. The Canadian Entomologist 51:271-273. (distribution). - As Halictus confusus arapahonum: - Kuhlmann, Kuhlmann, M. . in lit. :. ( listed as synonym of Halictus confusus Smith, 1853).
Halictus alpinus Alfken, 1907 - Kuhlmann, Kuhlmann, M. . in lit. :. ( listed as synonym of Halictus confusus Smith, 1853); Schwarz et al., 1996Schwarz, M., F. Gusenleitner, P. Westrich & H. Dathe 1996. Katalog der Bienen Österreichs, Deutschlands und der Schweiz (Hymenoptera, Apidae). Entomofauna Suppl. 8:1-398.:64 ( listed as synonym of Halictus confusus Smith, 1853); Amiet et al., 2001Amiet, F., M. Herrmann, A. Müller & R. Neumeyer 2001. Apidae 3 - Halictus, Lasioglossum. 1-208.:23 ( listed as synonym of Halictus confusus Smith, 1853). - As Halictus confusus alpinus: - Pagliano, 1995Pagliano, G. 1995. Hymenoptera Apoidea. In: Minelli A., Ruffo S. & La Posta S. (Ed.). Checklist delle specie della fauna italiana. 1-25. (distribution); Rasmont et al., 1995Rasmont, P., P.A. Ebmer, J. Banaszak & G. van der Zanden 1995. Hymenoptera Apoidea Gallica. Bulletin de la Société entomologique de France 100 (hors série):1-98. (distribution).
Halictus olivarius Sandhouse, 1924:10, ♀. Holotype ♀, Jumbo Reservoir, 9 miles east of Crook, Colorado, August 12, 1921 (U.S.N.M., No. 26399, leg. Sandhouse); Sandhouse, 1941Sandhouse, G.A. 1941. The american bees of the subgenus Halictus. Entomologica Americana 21:23-38 + 1 pl.:34, Type (U. S. National Museum). Synonymized with Halictus provancheri Dalla Torre, 1896 by Sandhouse, 1941Sandhouse, G.A. 1941. The american bees of the subgenus Halictus. Entomologica Americana 21:23-38 + 1 pl.:34. - Kuhlmann, Kuhlmann, M. . in lit. :. ( listed as synonym of Halictus confusus Smith, 1853); 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.:1956 ( listed as synonym of Halictus confusus arapahonum Cockerell, 1906).
Halictus perkinsi Blüthgen, 1926 - Kuhlmann, Kuhlmann, M. . in lit. :. ( listed as synonym of Halictus confusus Smith, 1853); Schwarz et al., 1996Schwarz, M., F. Gusenleitner, P. Westrich & H. Dathe 1996. Katalog der Bienen Österreichs, Deutschlands und der Schweiz (Hymenoptera, Apidae). Entomofauna Suppl. 8:1-398.:64 ( listed as synonym of Halictus confusus Smith, 1853). - As Halictus confusus perkinsi: - Pagliano, 1995Pagliano, G. 1995. Hymenoptera Apoidea. In: Minelli A., Ruffo S. & La Posta S. (Ed.). Checklist delle specie della fauna italiana. 1-25. (distribution); Rasmont et al., 1995Rasmont, P., P.A. Ebmer, J. Banaszak & G. van der Zanden 1995. Hymenoptera Apoidea Gallica. Bulletin de la Société entomologique de France 100 (hors série):1-98. (distribution).
Seladonia fasciata Robertson, 1929 - Mitchell, 1960Mitchell, T.B. 1960. Bees of the Eastern United States. Volume I. Technical bulletin (North Carolina Agricultural Experiment Station) 141:1-538.:333 ( listed as synonym of Halictus confusus Smith, 1853).
Halictus confusus glacialis Ebmer, 1979 - Kuhlmann, Kuhlmann, M. . in lit. :. ( listed as synonym of Halictus confusus Smith, 1853); Rasmont et al., 1995Rasmont, P., P.A. Ebmer, J. Banaszak & G. van der Zanden 1995. Hymenoptera Apoidea Gallica. Bulletin de la Société entomologique de France 100 (hors série):1-98. (distribution).
Halictus confusus pelagius Ebmer, 1996 - Kuhlmann, Kuhlmann, M. . in lit. :. ( listed as synonym of Halictus confusus Smith, 1853).