Synergus laticephalus Nieves-Aldrey & Medianero, 2011:6, ♀. Holotype ♀, Panama, Chiriquí, Boquete, El Salto, 8º 47' 32.08” N, 82º 27' 37.09” W, 1,431 m, gall collected 19.vii.2008 (MNCN, Madrid, Spain, Cat. n° 2096, leg. E. Medianero); 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.:21, Type (MNCN); 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.:58, Type material (MNCN). - Medianero & Nieves-Aldrey, 2011Medianero, E. & J.L. Nieves-Aldrey 2011. Primer estudio de las avispas de las agallas de la República de Panamá, incluyendo una lista actualizada de los cinípidos neotropicales (Hymenoptera, Cynipoidea, Cynipidae). Boletín de la Sociedad Entomológica Aragonesa 48:89-104. (distribution); Pénzes et al., 2012Pénzes, Z. C.-T. Tang, P. Bihari, M. Bozsó, S. Schwéger & G. Melika 2012. Oak associated inquilines (Hymenoptera, Cynipidae, Synergini). TISCIA monograph series 11:1-76. (distribution); Lobato-Vila & Pujade-Villar, 2017Lobato-Vila, I. & Pujade-Villar, J. 2017. Description of five new species of inquiline oak gall wasps of the genus Synergus Hartig (Hymenoptera, Cynipidae: Synergini) with partially smooth mesopleurae from Mexico. Zoological Studies 56 (36):1-28. (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); 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).