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A New Subgenus and Species of Priochirus from Mid-Cretaceous Kachin Amber (Coleoptera: Staphylinidae: Osoriinae)
Peng, Yuan Jiang, Rixin Shi, Chao Long, Xiaoxuan Engel, Michael S. Wang, Shuo
Peng, Yuan
Jiang, Rixin
Shi, Chao
Long, Xiaoxuan
Engel, Michael S.
Wang, Shuo
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Abstract
As one of the largest families of beetles (Coleoptera), the Staphylinidae (rove beetles and their relatives) are rich not only in extant species but also in a comparatively robust fossil record. Despite this preponderance of available fossil material, fossils of the diverse subfamily Osoriinae remain rare. Here, we describe a new ososriine species, Priochirus trisclerite sp. nov., from the mid-Cretaceous amber of Myanmar. The new specimen is similar to the only other definitive fossil of the genus, Priochirus thayerae Yamamoto 2019, and both are placed in the extinct subgenus Eopriochirus subgen. nov. The new species differs noticeably in a number of morphological details in relation to the submentum, gular sutures and protibial crenulae. The new fossil provides further evidence for understanding the radiation of staphylinoid beetles.
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Date
2022-05-30
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Publisher
MDPI
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Keywords
Staphylinoidea, New species, Burmese amber, Fossil insects, Myanmar
Citation
Peng Y, Jiang R, Shi C, Long X, Engel MS, Wang S. A New Subgenus and Species of Priochirus from Mid-Cretaceous Kachin Amber (Coleoptera: Staphylinidae: Osoriinae). Insects. 2022 May 30;13(6):513. doi: 10.3390/insects13060513. PMID: 35735850; PMCID: PMC9224542.