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

By

Tianyun, Chen
Jiang, Chao
Huang, Luqi

Type

Article

Date of Publication

2023

Original Publication

ZooKeys

Volume

1168

Pages

161--178

Subjects

Centipedes , key , Phylogeny , politus species group , Yunnan-Guizhou Plateau

Contributed by

Pensoft Publishers

Language

English

Published by

Sofia, Bulgaria Pensoft Publishers

Identifiers

DOI: https://doi.org/10.3897/zookeys.1168.82750

 

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. Otostigmus tricarinatussp. 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. politus politus + O. politus yunnanensis + Guangxi population of O. tricarinatussp. nov. with strong support from both BI (bayesian inference) and ML (maximum likelihood) analyses (PP = 1, BS = 97%).