Striatoandricus georgei Pujade-Villar, In Pujade-Villar et al. (2011: 28), In Cuesta-Porta et al. (2020a: 12)

Gall (Figs. 7a-b): Found adhered to the central vein on the underside of the leaves (rarely on the upper side). It appears as a mass of lemon yellow wool (sometimes dirty yellow, never brown), with brittle but not fragile pubescence, 1.0-1.6 cm in diameter, circular in appearance (rarely oval). The pubescence is located above the central core, forming a layer 3-4 mm thick. The central core is spherical, yellowish, dense and hard, and multilocular; the larval chambers are slightly ovoid (1x1.1 mm).

Hosts: Quercus deserticola, Q. glabrescens × obtusata, Quercus glaucoides M. Martens and Galeotti, 1843, Q. laeta, Q. magnoliifolia, Q. resinosa, and Q. rugosa (section Quercus).

Biology: The whitish galls form from September and mature in December. Adults emerge from December to April.

Distribution: Mexico (Mexico City, Hidalgo, Jalisco, Morelos, Puebla, and Zacatecas); cited from Santa Fe in Cuesta-Porta et al. (2020) on Q. rugosa and Q. laeta.

- Uriel Barrera-Ruiz, Victor Cuesta-Porta, David Cibrian-Tovar, Aitor Martinez-Romero, Juli Pujade-Villar: (2021) Avispas agalladoras de los encinos de Santa Fe (Ciudad de México, México) (Hymenoptera, Cynipidae: Cynipini; Fagaceae)^©