| abstract | A new species of tarsonemid mite, Tarsonemus destructor, collected from Monterey pine, Pinus radiata D. Don, is described and illustrated. The adults of this mite are predaceous on eggs of the false spider mite, Brevipalpus pini Baker and the spider mites, Oligonychus subnudus (McGregor), O. milleri (McGregor) and O. cunliffei Pritchard and Baker. Tarsonemus destructor was most abundant on the current seasonʼs foliage, and most individuals occurred in the fall. Numbers of T. destructor appeared to be too low to regulate populations of B. pini and O. subnudus. |