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 walshii Gillette, 1896 Synophrus albipes Walsh, 1864 . Proc. Entomol. Soc. Phil. 2: 496. Type material: MCZ. Synergus albipes : Osten-Sacken (1865) . Proc. Entomol. Soc. Phil. 4: 377. Synergus walshii Gillette, 1896 . Trans. Am. Entomol. Soc. 23: 97 (new name). Diagnosis . See Lobato-Vila et al . (2020c: 32) . Distribution . USA : Illinois ( Walsh 1864 ; Burks 1979 ) and Michigan ( Gillette 1896 ). Biology . Reared from woolly galls of Andricus quercusflocci ( Walsh, 1864 ) on leaves of white oaks ( Walsh 1864 ), probably the North American eastern white oak Q. alba ( Burks 1979 ) . Remarks . The type material of Synergus walshii was examined and the species was redescribed and illustrated by Lobato-Vila et al . (2020b: 706) . It was also treated by Lobato-Vila et al . (2020c: 32) .