A new species of Xorides Latreille (Hymenoptera, Ichneumonidae, Xoridinae) parasitizing Pterolophia alternata (Coleoptera, Cerambycidae) in Robinia pseudoacacia.

A new species is described, Xorides benxicus Sheng, sp. n., reared from the cerambycid twig-boring pest of Robinia pseudoacacia Linnaeus, Pterolophia alternata Gressitt, 1938, in Benxi County, Liaoning Province, China. A key is given to the species similar to Xorides benxicus Sheng, namely Xorides asiasius Sheng & Hilszczanski, 2009, Xorides cinnabarius Sheng & Hilszczanski, 2009 and Xorides sapporensis (Uchida, 1928).