Description of a new species of Bothynus Hope (Coleoptera: Scarabaeidae: Dynastinae: Pentodontini) from Bolivia with a key to the Bolivian species of Bothynus

Bothynus sartorei Ratcliffe & Cave sp. nov. is described as a new species from Arani, Cochabamba, Bolivia. The new species is compared with the similar B. minor Steinheil from Argentina and B. nyx Ratcliffe from Bolivia. A description, diagnosis for distinguishing the species, illustrations, and a distribution map are provided for the new species. A key to the Bolivian species of Bothynus Hope is presented.