No abstract

A new genus of a cynipid oak gallwasp, Kinseyella (Hymenoptera: Cynipidae: Cynipini) is described from Mexico. Diagnostic characters and generic limits of the new genus are discussed in details. A new species, Kinseyella quercusobtusata is described, which induces galls on leaves of Quercus obtusata, an endemic Mexican oak. One earlier known species from Mexico was transferred to the newly established genus, Kinseyella lapiei (Kieffer), comb. nova. Diagnostic characters for separation of two species are also given.