Synergus pseudofilicornis Lobato-Vila and Pujade-Villar, in Lobato-Vila et al., 2018:600, Lobato-Vila et al., 2019Lobato-Vila, I., D. Cibrián-Tovar, U.M. Barrera-Rutz, A.Equihua-Martínez, E.G. Estrada-Vebegas, M.L. Buffington & J. Pujade-Villar 2019. Review of the Synergus Hartig species (Hymenoptera: Cynipidae: Synergini) associated with tuberous and other tumor-like galls on oaks from the New World with the description of three new species from Mexico. Proceedings of the Entomological Society of Washington 121 (2):193-255.:235, Holotype ♀, examined (UB); Lobato-Vila et al., 2020Lobato-Vila, I., D. Cibrián-Tovar, U.M. Barrera-Ruíz, A. Equihua-Martínez, E.G. Estrada-Venegas, E. Tovar-Sánchez, E. Catillo-Mendoza, M.L. Buffington & J. Pujade-Villar 2020. Review of the Synergus Hartig species (Hymenoptera: Cynipidae: Synergini) associated with woolly galls on oaks from the New World, with the description of a new species from Mexico. Proceedings of the Entomological Society of Washington 122 (3):678-715.:700, Holotype (UB). - Lobato-Vila et al., 2019Lobato-Vila, I., D. Cibrián-Tovar, U.M. Barrera-Rutz, A.Equihua-Martínez, E.G. Estrada-Vebegas, M.L. Buffington & J. Pujade-Villar 2019. Review of the Synergus Hartig species (Hymenoptera: Cynipidae: Synergini) associated with tuberous and other tumor-like galls on oaks from the New World with the description of three new species from Mexico. Proceedings of the Entomological Society of Washington 121 (2):193-255. (distribution); Lobato-Vila et al., 2020Lobato-Vila, I., D. Cibrián-Tovar, U.M. Barrera-Ruíz, A. Equihua-Martínez, E.G. Estrada-Venegas, E. Tovar-Sánchez, E. Catillo-Mendoza, M.L. Buffington & J. Pujade-Villar 2020. Review of the Synergus Hartig species (Hymenoptera: Cynipidae: Synergini) associated with woolly galls on oaks from the New World, with the description of a new species from Mexico. Proceedings of the Entomological Society of Washington 122 (3):678-715. (distribution).