Agapostemon nigricornis Cresson:309 Nomen nudum. - Robertson, 1895Robertson, C. 1895. Notes on bees, with descriptions of new species. Transactions of the American Entomological Society 22 (2):115-128.:118 ( listed as synonym of Agapostemon viridula (Fabricius, 1793)).Agapostemon nigricornis Cresson:309 Nomen nudum. - Robertson, 1895Robertson, C. 1895. Notes on bees, with descriptions of new species. Transactions of the American Entomological Society 22 (2):115-128.:118 ( listed as synonym of Agapostemon viridula (Fabricius, 1793)).
Andrena virescens Fabricius, 1775:378, sex not indicated.America (Mus. Banks); 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.:77, Type ♀ (British Museum); Roberts, 1972Roberts, R.B. 1972. Revision of the bee genus Agapostemon (Hymenoptera: Halictidae). The University of Kansas Science Bulletin 49 (9):437-590.:547, Type ♀ (British Museum (Natural History)); Sheffield et al., 2021Sheffield, C.S., L. Vilhelmsen & F. Bakker 2021. Taxonomy of the New World bee genus Agapostemon Guérin-Méneville – new names and synonymies (Hymenoptera: Halictidae). European Journal of Taxonomy 751:1-23.:6, Holotype ♀ (BMNH(E), 668675). - As Agapostemon virescens: - 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); Cockerell, 1928Cockerell, T.D.A. 1928. Some bees from Utah. Psyche 35 (4):232-234. (distribution); 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); Mitchell, 1960Mitchell, T.B. 1960. Bees of the Eastern United States. Volume I. Technical bulletin (North Carolina Agricultural Experiment Station) 141:1-538. (distribution); 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); Mayer et al., 2000Mayer, D.F., E.R. Miliczky, B.F. Finnigan & C.A. Johansen 2000. The bee fauna (Hymenoptera: Apoidea) of southeastern Washington. Journal of the Entomological Society of British Columbia 97:25-32. (distribution); Ruíz-Cancino & Coronado-Blanco, 2002Ruíz-Cancino, E. & J.M. Coronado-Blanco 2002. Artrópodos terrestres de los estados de Tamaulipas y Nuevo León, México. Serie Publicaciones Cientificas No. 4:1-376. (distribution); Pascarella, 2006Pascarella, J.B. 2006. The bees of Florida. . (distribution); Wilson et al., 2010Wilson, J.S., L.E. Wilson, L.D. Loftis & T. Griswold 2010. The montane bee fauna of north central Washington, USA, with floral associations. Western North American Naturalist 70 (2):198-207. (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).
Apis viridula Fabricius, 1793:342 (leg. Lund); Roberts, 1972Roberts, R.B. 1972. Revision of the bee genus Agapostemon (Hymenoptera: Halictidae). The University of Kansas Science Bulletin 49 (9):437-590.:550, Type ♀ (Lunc collectioin, Zoologiske Museum, Copenhagen); Sheffield et al., 2021Sheffield, C.S., L. Vilhelmsen & F. Bakker 2021. Taxonomy of the New World bee genus Agapostemon Guérin-Méneville – new names and synonymies (Hymenoptera: Halictidae). European Journal of Taxonomy 751:1-23.:6, Lectotype ♀ (NHMD, ZMUC00241490). Synonymized with Agapostemon virescens (Fabricius, 1775) by Sheffield et al., 2021Sheffield, C.S., L. Vilhelmsen & F. Bakker 2021. Taxonomy of the New World bee genus Agapostemon Guérin-Méneville – new names and synonymies (Hymenoptera: Halictidae). European Journal of Taxonomy 751:1-23.:6. - As Agapostemon viridula: - Robertson, 1895Robertson, C. 1895. Notes on bees, with descriptions of new species. Transactions of the American Entomological Society 22 (2):115-128. (distribution). - As Agapostemon viridulus: - Dalla Torre, 1896Dalla Torre, C.G. 1896. Catalogus Hymenopterorum hucusque descriptorum systematicus et synonymicus, X. Apidae (Anthophila). Sumptibus Guilelmi Engelmann, 1-643. (distribution); Robertson, 1897Robertson, C. 1897. North American bees - Descriptions and synonyms. Transactions of the Academy of Science of St. Louis 7 (14):315-356. (distribution); Ashmead, 1900Ashmead, W.H. 1900. Report upon the aculeate Hymenoptera of the islands of St. Vincent and Grenada, with additions to the parasitic Hymenoptera and a list of the described Hymenoptera of the West Indies. Transactions of the Entomological Society of London pt. II:207-367. (distribution); Friese, 1902Friese, H. 1902. Beitrag zur Apidenfauna der grossen Antillen. Zeitschrift für systematische Hymenopterologie und Dipterologie 1-2:196-201. (distribution); Cockerell, 1902Cockerell, T.D.A. 1902. Flowers and insects in New Mexico. American Naturalist 36 (430):809-817. (distribution); Cockerell, 1904Cockerell, T.D.A. 1904. Descriptions and records of bees. The Annals and Magazine of Natural History ser. 7: v. 14:21-30. (distribution); Cockerell, 1906Cockerell, T.D.A. 1906. The bees of New Mexico. Transactions of the American Entomological Society 32:289-314. (distribution); Cockerell, 1907Cockerell, T.D.A. 1907. The bees of Boulder County, Colorado. University of Colorado Studies 4:239-259. (distribution); Friese, 1909Friese, H. 1909. Beitrag zur Bienenfauna der Kleinen Antillen und der Bermudas. Zoologische Jahrbücher Suppl. 11 (Erstes Heft):34-40. (distribution); Cockerell, 1911Cockerell, T.D.A. 1911. Records of bees. The Canadian Entomologist 43 (11):389-391. (distribution); Roberts, 1972Roberts, R.B. 1972. Revision of the bee genus Agapostemon (Hymenoptera: Halictidae). The University of Kansas Science Bulletin 49 (9):437-590. (distribution); Alayo, 1976Alayo, P.D. 1976. Introducción al estudio de los himenópteros de Cuba. Apoidea. Serie Biológica 68:1- 61. (distribution); Rivero, 2006Rivero, A. 2006. Estudios de diversidad de insectos en la región Jibacoa-Hanabanilla. Macizo Guamuhaya. Centro Agrícola año 33 (no. 2. abr.-jun.):49-56. (distribution); Genaro, 2008Genaro, J.A. 2008. Origins, composition and distribution of the bees of Cuba (Hymenoptera: Apoidea: Anthophila). Insecta Mundi 52:1-16. (distribution).
Andrena nigricornis Fabricius, 1793:313, sex not indicated.Georgia (Mus. Dom. Olivier); Roberts, 1972Roberts, R.B. 1972. Revision of the bee genus Agapostemon (Hymenoptera: Halictidae). The University of Kansas Science Bulletin 49 (9):437-590.:547, Types ♂ (Zoologiske Museum, Copenhagen). - 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.:76 ( listed as synonym of Agapostemon virescens (Fabricius, 1775)); Mitchell, 1960Mitchell, T.B. 1960. Bees of the Eastern United States. Volume I. Technical bulletin (North Carolina Agricultural Experiment Station) 141:1-538.:455 ( listed as synonym of Agapostemon virescens (Fabricius, 1775)); Roberts, 1972Roberts, R.B. 1972. Revision of the bee genus Agapostemon (Hymenoptera: Halictidae). The University of Kansas Science Bulletin 49 (9):437-590.:547 ( listed as synonym of Agapostemon virescens (Fabricius, 1775)); 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.:1954 ( listed as synonym of Agapostemon virescens (Fabricius, 1775)); Sheffield et al., 2021Sheffield, C.S., L. Vilhelmsen & F. Bakker 2021. Taxonomy of the New World bee genus Agapostemon Guérin-Méneville – new names and synonymies (Hymenoptera: Halictidae). European Journal of Taxonomy 751:1-23.:6 ( listed as synonym of Agapostemon virescens (Fabricius, 1775)).
Halictus tricolor Lepeletier, 1841:289, ♂. ♂, Amérique septentrionale (Musée de M. Serville); Roberts, 1972Roberts, R.B. 1972. Revision of the bee genus Agapostemon (Hymenoptera: Halictidae). The University of Kansas Science Bulletin 49 (9):437-590.:547, Type ♂ (Instituto e Museo di Zoologia, Universita di Torino, Italy). Synonymized with Agapostemon virescens (Fabricius, 1775) by Roberts, 1972Roberts, R.B. 1972. Revision of the bee genus Agapostemon (Hymenoptera: Halictidae). The University of Kansas Science Bulletin 49 (9):437-590.:547. - Robertson, 1897Robertson, C. 1897. North American bees - Descriptions and synonyms. Transactions of the Academy of Science of St. Louis 7 (14):315-356.:327 ( listed as synonym of Agapostemon radiatus (Say, 1837)); 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.:80 ( listed as synonym of Agapostemon radiatus (Say, 1837)); Mitchell, 1960Mitchell, T.B. 1960. Bees of the Eastern United States. Volume I. Technical bulletin (North Carolina Agricultural Experiment Station) 141:1-538.:451 ( listed as synonym of Agapostemon radiatus (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.:1954 ( listed as synonym of Agapostemon virescens (Fabricius, 1775)); Sheffield et al., 2021Sheffield, C.S., L. Vilhelmsen & F. Bakker 2021. Taxonomy of the New World bee genus Agapostemon Guérin-Méneville – new names and synonymies (Hymenoptera: Halictidae). European Journal of Taxonomy 751:1-23.:6 ( listed as synonym of Agapostemon virescens (Fabricius, 1775)). - As Agapostemon tricolor: - Cresson, 1872Cresson, E.T. 1872. Hymenoptera Texana. Transactions of the American Entomological Society 4:153-292. (distribution).
Halictus dimidiatus Lepeletier, 1841:283, ♀. ♀, Probablemente de l'Amérique septentrionale (Musée de M. Serville); Roberts, 1972Roberts, R.B. 1972. Revision of the bee genus Agapostemon (Hymenoptera: Halictidae). The University of Kansas Science Bulletin 49 (9):437-590.:547, Type ♀ (whereabout unknown). - Robertson, 1897Robertson, C. 1897. North American bees - Descriptions and synonyms. Transactions of the Academy of Science of St. Louis 7 (14):315-356.:326 ( listed as synonym of Agapostemon viridulus (Fabricius, 1793)); 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.:76 ( listed as synonym of Agapostemon virescens (Fabricius, 1775)); Mitchell, 1960Mitchell, T.B. 1960. Bees of the Eastern United States. Volume I. Technical bulletin (North Carolina Agricultural Experiment Station) 141:1-538.:455 ( listed as synonym of Agapostemon virescens (Fabricius, 1775)); Roberts, 1972Roberts, R.B. 1972. Revision of the bee genus Agapostemon (Hymenoptera: Halictidae). The University of Kansas Science Bulletin 49 (9):437-590.:547 ( listed as synonym of Agapostemon virescens (Fabricius, 1775)); 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.:1954 ( listed as synonym of Agapostemon virescens (Fabricius, 1775)); Sheffield et al., 2021Sheffield, C.S., L. Vilhelmsen & F. Bakker 2021. Taxonomy of the New World bee genus Agapostemon Guérin-Méneville – new names and synonymies (Hymenoptera: Halictidae). European Journal of Taxonomy 751:1-23.:6 ( listed as synonym of Agapostemon virescens (Fabricius, 1775)).
Agapostemon nigricornis ♀ Smith, 1853:86 - Robertson, 1897Robertson, C. 1897. North American bees - Descriptions and synonyms. Transactions of the Academy of Science of St. Louis 7 (14):315-356.:326 ( listed as synonym of Agapostemon viridulus (Fabricius, 1793)).
Augochlora radiata Provancher, 1882:205, ♀ - Robertson, 1897Robertson, C. 1897. North American bees - Descriptions and synonyms. Transactions of the Academy of Science of St. Louis 7 (14):315-356.:326 ( listed as synonym of Agapostemon viridulus (Fabricius, 1793)).
Agapostemon bicolor Robertson, 1893:148, ♂♀.Illinois; Roberts, 1972Roberts, R.B. 1972. Revision of the bee genus Agapostemon (Hymenoptera: Halictidae). The University of Kansas Science Bulletin 49 (9):437-590.:547, Type ♀ (Illinois Natural History Survey); Sheffield et al., 2021Sheffield, C.S., L. Vilhelmsen & F. Bakker 2021. Taxonomy of the New World bee genus Agapostemon Guérin-Méneville – new names and synonymies (Hymenoptera: Halictidae). European Journal of Taxonomy 751:1-23.:6, Lectotype ♀ (INHS, 3306). - Robertson, 1895Robertson, C. 1895. Notes on bees, with descriptions of new species. Transactions of the American Entomological Society 22 (2):115-128.:118 ( listed as synonym of Agapostemon viridula (Fabricius, 1793)); Dalla Torre, 1896Dalla Torre, C.G. 1896. Catalogus Hymenopterorum hucusque descriptorum systematicus et synonymicus, X. Apidae (Anthophila). Sumptibus Guilelmi Engelmann, 1-643. (distribution); Robertson, 1897Robertson, C. 1897. North American bees - Descriptions and synonyms. Transactions of the Academy of Science of St. Louis 7 (14):315-356.:326 ( listed as synonym of Agapostemon viridulus (Fabricius, 1793)); 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.:153 ( listed as synonym of Agapostemon virescens (Fabricius, 1775)); 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.:76 ( listed as synonym of Agapostemon virescens (Fabricius, 1775)); Mitchell, 1960Mitchell, T.B. 1960. Bees of the Eastern United States. Volume I. Technical bulletin (North Carolina Agricultural Experiment Station) 141:1-538.:455 ( listed as synonym of Agapostemon virescens (Fabricius, 1775)); Roberts, 1972Roberts, R.B. 1972. Revision of the bee genus Agapostemon (Hymenoptera: Halictidae). The University of Kansas Science Bulletin 49 (9):437-590.:547 ( listed as synonym of Agapostemon virescens (Fabricius, 1775)); 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.:1954 ( listed as synonym of Agapostemon virescens (Fabricius, 1775)); Sheffield et al., 2021Sheffield, C.S., L. Vilhelmsen & F. Bakker 2021. Taxonomy of the New World bee genus Agapostemon Guérin-Méneville – new names and synonymies (Hymenoptera: Halictidae). European Journal of Taxonomy 751:1-23.:6 ( listed as synonym of Agapostemon virescens (Fabricius, 1775)).