New species of permochoristids (Insecta, Mecoptera) from the late Middle Triassic Tongchuan entomofauna in Shaanxi Province, northwestern China

ABSTRACT

Permochoristidae is one of the most diverse mecopteran families in the fossil record, but only a few species have been previously described from China. Herein, we describe and illustrate two new permochoristid species, Mesochorista tongchuanensis sp. nov. and Agetopanorpa sinica sp. nov., from the late Middle Triassic of Yanchang Formation in Shaanxi Province. Mesochorista conjunctiva comb. n. is proposed for Qingochorista conjunctiva. Mesochorista tongchuanensis sp. nov. and Agetopanorpa sinica sp. nov. represent the sparse record of Mesochorista and Agetopanorpa in China, respectively. The new discovery adds to our knowledge of their distribution and palaeodiversity during the Triassic.

urn:lsid:zoobank.org:pub:DA7ACCFF-D76E-492D-BB1B-37AC1CA5D264

KEYWORDS:

• Permochoristinae
• Agetopanorpinae
• biodiversity
• Tongchuan Formation

Acknowledgements

We sincerely thank Jian Gao, Yanzhe Fu, Dany Azar and Yitong Su for their help in the fieldwork, and Alexei S. Bashkuev for his suggestion about the venational nomenclature. Financial support was provided by the National Natural Science Foundation of China (41925008, 42288201) and the Strategic Priority Research Program of the Chinese Academy of Sciences (XDB26000000).

Disclosure statement

No potential conflict of interest was reported by the author(s).

Additional information

Funding

This work was supported by the National Natural Science Foundation of China [41925008, 42288201]; Strategic Priority Research Program of the Chinese Academy of Sciences [XDB26000000].