Striatoandricus Pujade-Villar, 2020

Cuesta-Porta, Victor, Melika, George, Nicholls, James A., Stone, Graham N. & Pujade-Villar, Juli, 2022, Re-establishment of the Nearctic oak cynipid gall wasp genus Druon Kinsey, 1937 (Hymenoptera: Cynipidae: Cynipini), with description of five new species, Zootaxa 5132 (1), pp. 1-92 : 75

Striatoandricus Pujade-Villar, 2020

Four additional Andricus species are known to induce galls covered in dense woolly pubescence on white oak hosts (see Fig. 243 for such a gall). Each of these four species was found at have a striato-reticulated metasoma; within the group of Nearctic species previously mis-classified into Andricus ‘sensu lato’, this metasomal sculpturing is diagnostic for the genus Striatoandricus . In addition, they share the extra characters noted above that allow diagnosis of Striatoandricus from Druon , and the characters mentioned in the genus-level key within Melika et al. 2021b that distinguish Striatoandricus from other related genera. Thus, we herein transfer these four species to Striatoandricus . A key to Striatoandricus species was given in Cuesta-Porta et al. (2020); herein diagnostic differences are given in a “Diagnosis” to each of the four transferred species.

Figures

FIGURES 236–244. Galls of Nearctic species from the genera Andricus, Antron, Callirhytis and Striatoandricus, that have a similar aggregated and woolly morphology to the galls induced by Druon species. 236, Andricus tibialis. 237, Andricus tecturnarum. 238, Antron quercusnubila. 239, Callirhytis infuscata. 240, C. lanata. 241, C. furva. 242, Striatoandricus georgei. 243, S. furnessulus. 244, Callirhytis seminator. Galls of different species are given in different scale. Fig 240 courtesy of C.-T. Tang.