Key to Ooctonus Haliday (Hymenoptera: Mymaridae) in China, with one new species and three new country records Author Aishan, Zhulidezi College of Life Science and Technology, Xinjiang University, Urumqi, Xinjiang, P. R. China. & Xinjiang Key Laboratory of Biological Resources and Genetic Engineering, Urumqi, P. R. China Author Triapitsyn, Serguei V. 0000-0002-5086-7847 Entomology Research Museum, Department of Entomology, University of California, Riverside, California, 92521, USA. serguei. triapitsyn @ ucr. edu; https: // orcid. org / 0000 - 0002 - 5086 - 7847 serguei.triapitsyn@ucr.edu Author Zhu, Chao-Dong 0000-0002-9347-3178 Key Laboratory of Zoological Systematics and Evolution, Institute of Zoology, Chinese Academy of Sciences, 1 Beichen West Road, Chaoyang District, Beijing, 100101, P. R. China. zhucd @ ioz. ac. cn; https: // orcid. org / 0000 - 0002 - 9347 - 3178 & State Key Laboratory of Integrated Pest Management, Institute of Zoology, Chinese Academy of Sciences, 1 Beichen West Road, Chaoyang District, Beijing, 100101, P. R. China zhucd@ioz.ac.cn Author Hu, Hong-Ying College of Life Science and Technology, Xinjiang University, Urumqi, Xinjiang, P. R. China. & Xinjiang Key Laboratory of Biological Resources and Genetic Engineering, Urumqi, P. R. China text Zootaxa 2022 2022-06-23 5155 4 581 588 journal article 80410 10.11646/zootaxa.5155.4.7 1d896240-e838-4e07-92ed-15eb67f71f9f 1175-5326 6691760 8970F2CC-0411-4EA8-A5D6-5C7B62964F39 Ooctonus lokomotiv Triapitsyn, 2010 ( Figs 13–16 ) Ooctonus lokomotiv Triapitsyn 2010: 26–27 . Material examined. CHINA . INNER MONGOLIA : Arxan , 9.viii.2011 , F. Yuan (Yuan Feng), sweeping [ 2♀ , ICXU ]; Hanma National Nature Reserve , 28.viii.2015 , L. Shi (Shi Li), sweeping [ 2♀ , ICXU ] . Distribution. China ( new record ) ( Inner Mongolia ); Far East of Russia ( Triapitsyn 2010 ). Hosts. Unknown. Comments. The morphological features of the specimens examined from China agree well with the description of O. lokomotiv by Triapitsyn (2010) , which is an eastern Palearctic species. The specimens were collected in Greater Khingan Mountains, an area with temperate continental climate.