Abstract
Tetranychus ogmophallos sp. nov., the eriophyid Aceria pintoi sp. nov. are described from Arachis pintoi in Brasilia, Brazil. Since T. ogmophallos thrives on groundnuts (A. hypogaea) and on A. prostrata, it is suggested that stolons of A. pintoi should not be used as a means of propagation since they can easily carry a potential pest to at least one economic crop
