The genus Synergus Hartig (Hymenoptera: Cynipidae: Synergini) in the New World: a complete taxonomic revision with a key to species Author Lobato-Vila, Irene Author Pujade-Villar, Juli 0000-0001-7798-2717 jpujade@ub.edu text Zootaxa 2021 2021-01-12 4906 1 1 121 journal article 8839 10.11646/zootaxa.4906.1.1 308129a3-a99f-4012-bb41-d3220692c398 1175-5326 4434000 09383AAD-8E30-4E50-A533-C6DA4D00E33C Synergus pseudofilicornis Lobato-Vila & Pujade-Villar, 2018 Synergus pseudofilicornis Lobato-Vila & Pujade-Villar in Lobato-Vila et al . (2018) . Southwest. Entomol. 43 (3): 600. Type material: UB ( holotype ), paratypes in UB , UACh, and USNM. Diagnosis . See Lobato-Vila et al . (2020b: 703) and the diagnoses of S. diversicolor and S. weldi , sp. nov. (this work). Distribution . Mexico : Ciudad de México , Hidalgo , México , Morelos , Nuevo León , Puebla , Tlaxcala , and Veracruz (Lobato-Vila et al . 2018, 2019, 2020b). Biology . Synergus pseudofilicornis is considered a generalist species, even though it is more frequently reared from asexual tuberous twig galls of Andricus quercuslaurinus Melika & Pujade-Villar, 2009 on Q. affinis and Q. laurina ( Pujade-Villar et al. 2012a ; Tormos et al. 2014 ; Pujade-Villar 2017; Lobato-Vila et al. 2018, 2019, 2020b). It can be also obtained from sexual galls of A. quercuslaurinus (non-tuberous) and from other tuberous galls initiated by different species of Andricus (Lobato-Vila et al. 2019) . According to Lobato-Vila et al . (2020b) , S. pseudofilicornis can be also reared from woolly galls induced by different Andricus and Striatoandricus species, as well as from non-woolly galls (tuberous and non-tuberous) initiated by Andricus , Atrusca , Cynips , Dros , Neuroterus and other undetermined galls on oaks of both Quercus and Lobatae sections. Remarks . The morphological variability of S. pseudofilicornis , as well as its host preferences, was comprehensively treated and illustrated by Lobato-Vila et al . (2020b: 704) .