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

Tian-Yun Chen; Chao Jiang; Lu-Qi Huang

doi:10.3897/zookeys.1168.82750

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

Zookeys. 2023 Jun 29:1168:161-178. doi: 10.3897/zookeys.1168.82750. eCollection 2023.

Authors

Tian-Yun Chen^{1

2}, Chao Jiang², Lu-Qi Huang²

Affiliations

¹ Guangdong Pharmaceutical University, Guangzhou 510006, China China Academy of Chinese Medical Sciences Beijing China.
² State Key Laboratory of Dao-di Herbs Breeding Base, National Resource Center for Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing 100700, China Guangdong Pharmaceutical University Guangzhou China.

Abstract

Through a combination of morphological and DNA data, a new scolopendrid centipede from southern and southwestern China was revealed: O.tricarinatussp. 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. Otostigmustricarinatussp. nov. was found to be two populations and varied 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.tricarinatussp. nov. was sister to the clade O.polituspolitus + O.politusyunnanensis + Guangxi population of O.tricarinatussp. nov. with strong support from both BI (bayesian inference) and ML (maximum likelihood) analyses (PP = 1, BS = 97%).

Keywords: Centipedes; Yunnan-Guizhou plateau; key; phylogeny; politus species group.

Tian-Yun Chen, Chao Jiang, Lu-Qi Huang.

Grants and funding

Fundamental Research Funds for the Central public welfare research institutes