title: The genus Trachionus Haliday, 1833 (Hymenoptera, Braconidae, Alysiinae) new for China, with description of four new species.
abstract: The genus Trachionus Haliday, 1833 (Hymenoptera, Braconidae, Alysiinae, Dacnusini) is reported for the first time from China. The genus is represented by four new species from Shaanxi province (NW China), which are described and illustrated. An identification key to the species in China is presented, a key to the genera of the Trachionus group and notes on the relationships with other Palaearctic species are added.
authors.affiliation: Key Laboratory of Resource Biology and Biotechnology in Western China (Northwest University), Ministry of Education; College of Life Sciences, Northwest University, 229 North Taibai Road, Xi'an, Shaanxi 710069, China.
authors.forename: Qian
authors.initials: Q
authors.lastname: Cui
authors.affiliation: Key Laboratory of Resource Biology and Biotechnology in Western China (Northwest University), Ministry of Education; College of Life Sciences, Northwest University, 229 North Taibai Road, Xi'an, Shaanxi 710069, China.
authors.forename: Cornelis
authors.initials: C
authors.lastname: van Achterberg
authors.affiliation: Key Laboratory of Resource Biology and Biotechnology in Western China (Northwest University), Ministry of Education; College of Life Sciences, Northwest University, 229 North Taibai Road, Xi'an, Shaanxi 710069, China.
authors.forename: Jiang-Li
authors.initials: JL
authors.lastname: Tan
authors.affiliation: Institute of Insect Sciences, Zhejiang University, Zijingang Campus, Yuhangtang Road 866, Hangzhou 310058, China.
authors.forename: Xue-Xin
authors.initials: XX
authors.lastname: Chen
keywords: Alysiinae; Braconidae; China; Dacnusini; Shaanxi; Trachionus; new species