A new species of Otostigmus (Chilopoda, Scolopendromorpha , Scolopendridae) from China, with remarks on the phylogenetic relationships of Otostigmus politus Karsch, 1881

作者：Chen, Tian-Yun; Jiang, Chao^*; Huang, Lu-Qi^*

来源：ZooKeys, 2023, (1168): 161-178.

DOI：10.3897/zookeys.1168.82750

• Centipedes
• key
• phylogeny
• politus species group
• Yunnan-Guizhou plateau

Through a combination of morphological and DNA data, a new scolopendrid centi-pede from southern and southwestern China was revealed: O. tricarinatus sp. nov. The species belong to the politus group but has three sharp tergal keels. Validation of phylogenetic status was performed through molecular analysis of the cytochrome c oxidase subunit I (COI), 16S rRNA, and 28S rRNA sequences from 16 Otostigmus species. Otostigmus tricarinatus sp. nov. was found to be two populations and var-ied in the number of spines on the ultimate prefemur, the sutures on a sternite, and a pore-free median longitudinal strip in the pore field. The Yunnan-Guizhou plateau population of O. tricarinatus sp. nov. was sister to the clade O. politus politus + O. politus yunnanensis + Guangxi population of O. tricarinatus sp. nov. with strong support from both BI (bayesian inference) and ML (maximum likelihood) analyses (PP = 1, BS = 97%).

• 单位
  广东药学院