Two New Species of Mesochorista (Insecta, Mecoptera, Permochoristidae) from the Guadalupian Yinping Formation of Chaohu, Eastern China
Permochoristidae is a megadiverse mecopteran group that has mainly been reported from Russia and Australia, whereas records from China remain scarce. In this report, two new species of <i>Mesochorista</i> are described and illustrated from the Guadalupian Yinping Formation, Eastern China. <i>Mesochorista tillyardi</i> Lian and Huang, sp. nov. is characterized by the forewing covered with dense oval spots, and Sc<sub>1</sub> closely approximal to R<sub>1</sub> and connected by a short sc-r crossvein. <i>Mesochorista yinpingensis</i> Lian and Huang, sp. nov. is characterized by the forewing covered with dense irregularly colored patches, Sc<sub>1</sub> devoid of expanded area, and M with only five branches. Based on a detailed discussion of the type species and other co-occurring species of <i>Mesochorista</i> and <i>Permochorista</i>, in light of the new insights into Sc<sub>3</sub>, we support that <i>Permochorista</i> is a junior synonym of <i>Mesochorista.</i>
Authors
- Diying Huang (ORCID: https://orcid.org/0000-0002-5637-4867)
- Zhuo Feng (ORCID: https://orcid.org/0000-0001-9635-1144)
- XIN-NENG LIAN (ORCID: https://orcid.org/0000-0001-6680-1781)
- Chenyang Cai (ORCID: https://orcid.org/0000-0002-9283-8323)
Institutions
- Yunnan University (CN)
- Chinese Academy of Sciences (CN)
- Nanjing Institute of Geology and Paleontology (CN)
Publication Details
- Journal
- Insects
- Published
- 2025-11-05
- DOI
- https://doi.org/10.3390/insects16111130
- Primary Topic
- Fossil Insects in Amber
- Type
- article
- Field-Weighted Citation Impact
- 0.00