Kekveus brevisulcatus sp. nov., a new featherwing beetle from mid-Cretaceous amber of northern Myanmar (Coleoptera: Ptiliidae)

PeerJ

article

Yan-Da Li¹  Shûhei Yamamoto³  Alfred F. Newton⁴  Chen-Yang Cai¹ 

[1] Bristol Palaeobiology Group, School of Earth Sciences, University of Bristol;State Key Laboratory of Palaeobiology and Stratigraphy, Nanjing Institute of Geology and Palaeontology, Chinese Academy of Sciences;The Hokkaido University Museum, Hokkaido University;Negaunee Integrative Research Center

关键词: Ptiliidae;    Fossil;    Phylogeny;    Burmese amber;   

DOI  :  10.7717/peerj.15306

学科分类：社会科学、人文和艺术（综合）

来源: Inra

【 摘 要 】

Ptiliidae (featherwing beetles) is a group of minute staphylinoid beetles with a scarce fossil record. Here a second member of the Mesozoic genus Kekveus Yamamoto et al. is reported from mid-Cretaceous Burmese amber, with detailed morphology obtained through confocal microscopy. Kekveus brevisulcatus Li, Yamamoto, Newton & Cai sp. nov. shares with K. jason Yamamoto et al. the unpaired medial pronotal fovea and narrowly separated transverse metacoxae, but can be separated from the latter based on its less elongate body, shorter pronotal foveae, and much weaker transverse depression on the head. Our phylogenetic analyses support the discheramocephalin affinity of Kekveus, although its relationship with other members of Discheramocephalini cannot be confidently resolved.

【 授权许可】

CC BY