Synergus medullae Ashmead, 1885

Lobato-Vila, Irene & Pujade-Villar, Juli, 2021, The genus Synergus Hartig (Hymenoptera: Cynipidae: Synergini) in the New World: a complete taxonomic revision with a key to species, Zootaxa 4906 (1), pp. 1-121 : 66

Synergus medullae Ashmead, 1885

Synergus medullae Ashmead, 1885 . Trans. Am. Entomol. Soc. 12: 302. Type material: USNM.

Diagnosis. See Lobato-Vila et al. (2019: 224) and the diagnoses of S. atra and S. bicolor (this work).

Distribution. USA: Florida ( Ashmead 1885; Lobato-Vila et al. 2019).

Biology. Reared from tuberous stem galls of Zapatella quercusmedullae ( Ashmead, 1885) (= Andricus medullae ) ( Ashmead 1885; Pujade-Villar et al. 2012b; Lobato-Vila et al. 2019), which is associated with oaks of the Lobatae section from the USA ( Burks 1979; Pujade-Villar et al. 2012b): Q. incana , Q. marilandica , and Q. myrtifolia .

Remarks. The type material of Synergus medullae was examined and the species was redescribed and illustrated by Lobato-Vila et al. (2019: 224).