Synergus striatifrons Lobato-Vila & Pujade-Villar, 2017:20, ♂♀. Holotype ♀, MEX: 292, San Marcos Contla (Papalotla de Xicohténcatl, TLAX), 19°11'54.2'N, 98°11'58.7'W, 2342 m, A. Equihua and E. Estrada (Universitat de Barcelona, Barcelona, Spain, leg. (03.vi.2010) 04.vii.2010); Lobato-Vila et al., 2020Lobato-Vila, I., A. Equihua-Martínez, E.G. Estrada-Vengegas, D. Cibrián-Tovar, U.M. Barrera-Ruíz & J. Pujade-Villar 2020. Synergus Hartig species group (Hymenoptera: Cynipidae: Synergini) with partially smooth mesopleurae from the New World. Zootaxa 4822 (1):1-38.:30, Holotype (UB); Lobato-Vila & Pujade-Villar, 2021Lobato-Vila, I. & J. Pujade-Villar 2021. The genus Synergus Hartig (Hymenoptera: Cynipidae: Synergini) in the New World: a complete taxonomic revision with a key to species. Zootaxa 4906 (1):1-121.:94, Holotype (UB). - Lobato-Vila & Pujade-Villar, 2018Lobato-Vila, I. & J. Pujade-Villar 2018. Estado actual del conocimiento de la diversidad de inquilinos de agallas de Cinípidos en encinos de México (Hymenoptera: Cynipidae). Entomología mexicana 5:435-443. (distribution); Lobato-Vila et al., 2020Lobato-Vila, I., A. Equihua-Martínez, E.G. Estrada-Vengegas, D. Cibrián-Tovar, U.M. Barrera-Ruíz & J. Pujade-Villar 2020. Synergus Hartig species group (Hymenoptera: Cynipidae: Synergini) with partially smooth mesopleurae from the New World. Zootaxa 4822 (1):1-38. (distribution); Nastasi & Deans, 2021Nastasi, L.F. & A.R. Deans 2021. Catalogue of Rose Gall, Herb Gall, and Inquiline Gall Wasps (Hymenoptera: Cynipidae) of the United States, Canada and Mexico. Biodiversity Data Journal 9 (e68558):1-41. (distribution); Lobato-Vila & Pujade-Villar, 2021Lobato-Vila, I. & J. Pujade-Villar 2021. The genus Synergus Hartig (Hymenoptera: Cynipidae: Synergini) in the New World: a complete taxonomic revision with a key to species. Zootaxa 4906 (1):1-121. (distribution).