Reticulodermis lithogalla García-Martiñón & Pujade-Villar sp. nov.

Gall
Irregularly globular, flat at the base, with a coriaceous surface, with scattered tufts of short pubescence across the gall surface; surface wrinkled, green to grayish-brown when mature. Small in size (2–4 mm wide and 4–5 mm long), on the underside of the leaves between the secondary veins, in variable numbers. Emergence holes usually located laterally.

Host
Known only from Q. crassipes Humb. & Bonpl. (section Lobatae).

Distribution
Known from Mexico State only.

Biology
Only the asexual generation is known. The galls were collected in early February; adults emerged shortly after. The galls remain on the tree for several months after adults emerged. Several parasitoids were obtained from the following Chalcidoidea families: Torymidae (3♂ & 5♀), Eupelmidae (1♂), Eulophidae (14♂ & 19♀), and Ormyridae (2♀), and also cynipid inquilines from the tribe Synergini (6♀).