Reticulodermis lithogalla (agamic)

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♀).

Reticulodermis lithogalla gen. nov. and sp. nov. of oak gall wasp from Mexico (Hymenoptera, Cynipidae)