Notes on the genus Dendrocerus Ratzeburg (Hymenoptera, Megaspilidae) from China, with description of two new species Author Wang, Xu Anhui Provincial Key Laboratory of the Conservation and Exploitation of Biological Resources, Key Laboratory of Biotic Environment and Ecological Safety in Anhui Province, College of Life Sciences, Anhui Normal University, Wuhu, Anhui 241000, China & State Key Laboratory of Biocontrol, School of Life Sciences / School of Ecology, Sun Yat-sen University, Guangzhou 510275, China wangxu0322@ahnu.edu.cn Author Chen, Huayan https://orcid.org/0000-0002-0382-1635 Don Chandler Entomological Collection, Department of Biological Sciences, University of New Hampshire, Spaulding Hall, Durham, NH 03824, USA Author Miko, Istvan https://orcid.org/0000-0001-9719-0215 Collaborative Innovation Center of Recovery and Reconstruction of Degraded Ecosystem in Wanjiang Basin Co-founded by Anhui Province and Ministry of Education; School of Ecology and Environment, Anhui Normal University, Wuhu, Anhui 241000, China Author Huang, Yixin https://orcid.org/0000-0002-7885-321X Anhui Provincial Key Laboratory of the Conservation and Exploitation of Biological Resources, Key Laboratory of Biotic Environment and Ecological Safety in Anhui Province, College of Life Sciences, Anhui Normal University, Wuhu, Anhui 241000, China & Key Laboratory of Zoological Systematics and Evolution, Institute of Zoology, Chinese Academy of Sciences, Beijing 100000, China Author Zhu, Chaodong https://orcid.org/0000-0002-9347-3178 Key Laboratory of Zoological Systematics and Evolution, Institute of Zoology, Chinese Academy of Sciences, Beijing 100000, China zhucd@ioz.ac.cn text Journal of Hymenoptera Research 2021 2021-10-29 86 123 143 http://dx.doi.org/10.3897/jhr.86.72281 journal article http://dx.doi.org/10.3897/jhr.86.72281 1314-2607-86-123 0CCED1F302204B66AF5572A60C54E859 B7B416D84AB55732B981DAE9DEF393FA 5650505 Dendrocerus Ratzeburg, 1852 Dendrocerus Ratzeburg, 1852: 180. Type species: Dendrocerus lichtensteinii Ratzeburg, by monotypy (= Ceraphron halidayi Curtis). Diagnosis. Head moderately transverse; facial pit absent in most species. Males usually with an obtuse ocellar triangle (POL longer than LOL). Male flagellomeres usually asymmetrical, serrate or trapezoidal. Some species also have branched flagellomeres ( D. mexicali group). Metapleural sulcus shape usually straight. Sternaulus never present. Medioventral conjunctiva of gonostyle-volsella complex (parossiculi fusion) absent. Wings never absent ( Trietsch et al. 2020 ).