Species of Xorides (Xorides) (Hymenoptera: Ichneumonidae: Xoridinae) parasitizing wood-boring insects in the Palaearctic part of China

Thirteen species of Xorides (Xorides) parasitizing wood-boring insects in trunks and branches of trees are reported. Three of them, X. (Xorides) pissodius Sheng & Wen sp. n. reared from Pissodes nitidus Roelofs (Curculionidae, Coleoptera) in Larix principis-rupprechtii Mayr (Pinaceae), X. (Xorides) tumidus Sheng & Wen sp. n. reared from Cerambycidae in Quercus sp. (Fagaceae) and X. (Xorides) longicaudus Sheng & Wen sp. n. are new to science. X. (Xorides) ater (Gravenhorst, 1829) is a new record for China. Some new host records are provided. A key to species of Xorides (Xorides) of the Palaearctic part of China is presented

Positive-partial-transpose distinguishability for lattice-type maximally entangled states

We study the distinguishability of a particular type of maximally entangled states -- the "lattice states" using a new approach of semidefinite program. With this, we successfully construct all sets of four ququad-ququad orthogonal maximally entangled states that are locally indistinguishable and find some curious sets of six states having interesting property of distinguishability. Also, some of the problems arose from \cite{CosentinoR14} about the PPT-distinguishability of "lattice" maximally entangled states can be answered.Comment: It's rewritten. We deleted the original section II about PPT-distinguishability of three ququad-ququad MESs. Moreover, we have joined new section V which discuss PPT-distinguishability of lattice MESs for cases $t=3$ and $t=4$ . As a result, the sequence of the theorems in our article has been changed. And we revised the title of our articl