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.
Tylopilus plumbeoviolaceoides
T.H. Li, B. Song & Y.H. Shen, 2002 is a species of basidiomycete in the family Boletaceae and is mainly found in Yunnan and Guangdong provinces in China. In this study, the mitochondrial genome of
T. plumbeoviolaceoides
was reported for the first time. The total length of the mitochondrial genome of
T. plumbeoviolaceoides
was 37,242 bp, with GC content of 23.0%. The mitochondrial genome of
T. plumbeoviolaceoides
contained 14 conserved protein-coding genes, 25 transfer RNA genes, and 2 ribosomal RNA genes. The phylogenetic tree indicated that
T. plumbeoviolaceoides
was closely related to
Xerocomus impolitus
and
Butyriboletus roseoflavus.
The complete mitochondrial genome of
T. plumbeoviolaceoides
will be useful for future research on basidiomycetes.
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