Five new species and three new country records of Megaspilidae from Xizang Autonomous Region, China (Hymenoptera, Ceraphronoidea)

Five new species of the Megaspilidae are described from Xizang (or Tibet, SW China): Conostigmus bomensis Wang & Zhu, sp. nov., Conostigmus jilongensis Wang & Zhu, sp. nov., Conostigmus shigatsensis Wang & Zhu, sp. nov., Conostigmus kairus Wang & Zhu, sp. nov., and Dendrocerus tumidulus Wang & Zhu, sp. nov. Lagynodes acuticornis (Kieffer, 1906), Conostigmus rufinotum Dodd, 1914, and Dendrocerus sergii Alekseev, 1994 are reported for the first time from China based on specimens collected from Xizang. A key to all known species of Chinese Megaspilidae is included.