Description of three new species of oak gallwasps of the genus Reinhard from Mexico (Hymenoptera, Cynipidae).

Three new species of oak gall wasps of the genus Reinhard, 1865 (Hymenoptera: Cynipidae: Cynipini) are described from Mexico: Nieves-Aldrey & Castillejos-Lemus, Nieves-Aldrey & Castillejos-Lemus and Nieves-Aldrey & Castillejos-Lemus. The specimens of the first two species were representative of sexual generations and come from the State of Oaxaca, while only a female, collected in the State of Veracruz, is described for . The new species induces galls on and (Fagaceae, section Lobatae, red oaks). Descriptions of the diagnostic morphological characteristics of the three species and a key for their identification are provided. The taxonomic relationships of the new species with other species of are discussed; the three new species are closely allied amongst themselves and are related to Kinsey, 1937. With the three newly-described species, the number of in Mexico is increased to 23.