Disholcaspis crystalae, n. sp.
Agamic form

Gall (Fig. 1c): Globular, spherical, lignified, growing in clusters of two to five galls. Green when young and growing, turning brown when old. Surface provided with a large number of short protuberances reminding the fruit of Arbutus unedo L. or the gall of the agamic form of Cynips quercusfolii; rarely protuberances scarce or almost non-existent. Diameter 8 to 14 mm. Easy to cut, external wall (2mm) is not hard, corky texture. Internally with a large air chamber in which the yellow, oval and friable larval chamber is housed in the lower part. The larval chamber detaches easily, being free in the internal chamber.

Biology: Only asexual females are known, inducing galls on Quercus laeta Liebm. (Quercus Section Quercus, white oaks), endemic to Mexico (Valencia, 2004; Romero-Rangel et al., 2015). Galls were collected early in end June, and adults emerged in December to January. Further study is needed to determine the phenology of this species.

- Uriel Barrera-Ruiz, David Cibrian-Tovar, Juli Pujade-Villar: (2018) A new species of Disholcaspis from Mexico: D. crystalae Pujade Villar n. sp. (Hym., Cynipidae)^©