A New Mexican Species of Orizabus Fairmaire (Coleoptera: Scarabaeidae: Dynastinae: Pentodontini), with a Key to the Species of the Genus.

A new Orizabus species is described from Chilapa de Álvarez in the state of Guerrero (Mexico). The new species is similar to Orizabus rawlinsi Dechambre Bull Soc Entomol Fr 98:342, 1993, which is known from the state of Oaxaca but differs in the pygidial punctation, and the shape of the marginal pronotal bead and the parameres. A revised identification key to Orizabus species is provided.