Halictus lignys Vachal, 1904:120, Smith-Pardo, 2005Smith-Pardo, A.H. 2005. The bees of the genus Neocorynura of Mexico (Hymenoptera: Halictidae: Augochlorini). Folia Entomologica Mexicana 44 (2):165-193.:184, Holotype ♀ (MNHN); Rasmussen, 2012Rasmussen, C. 2012. Joseph Vachal (1838–1911): French entomologist and politician. Zootaxa 3442:1-52.:33, 9♀ (MNHN). - As Neocorynura lignys: - Smith-Pardo, 2005Smith-Pardo, A.H. 2005. The bees of the genus Neocorynura of Mexico (Hymenoptera: Halictidae: Augochlorini). Folia Entomologica Mexicana 44 (2):165-193. (distribution); Smith-Pardo, 2016Smith-Pardo, A.H. 2016. Two new species of Neocorynura from Guatemala (Hymenoptera: Halictidae: Augochlorini) with a key to the species known from the country. Zootaxa 4161 (2):193-206. (distribution); Sagot et al., 2018Sagot, P, J. Mérida, R. Ayala & R. Vandame 2018. Situación actual del conocimiento de la fauna de abejas (Apoidea: Anthophila) del estado de Chiapas, México. In: (Ed.). Memorias X Congreso Mesoamericano sobre Abejas Nativas. 191-2011. (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).
Halictus chlorocion Vachal, 1904:140, Rasmussen, 2012Rasmussen, C. 2012. Joseph Vachal (1838–1911): French entomologist and politician. Zootaxa 3442:1-52.:22, Types (MNHN). Synonymized with Neocorynura lignys (Vachal, 1904) by Smith-Pardo, 2005Smith-Pardo, A.H. 2005. The bees of the genus Neocorynura of Mexico (Hymenoptera: Halictidae: Augochlorini). Folia Entomologica Mexicana 44 (2):165-193.:182. Synonymized with Neocorynura lignys (Vachal, 1904). - Rasmussen, 2012Rasmussen, C. 2012. Joseph Vachal (1838–1911): French entomologist and politician. Zootaxa 3442:1-52.:22 ( listed as synonym of Neocorynura lignys (Vachal, 1904)). - As Neocorynura chlorocion: - 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).