A remarkable new species of Kiotina Klapálek, 1907 (Plecoptera: Perlidae) from China

Abstract

A remarkable new species of the genus Kiotina Klapálek, 1907 is described, K. bilobata sp. nov. both from Guangdong and Zhejiang provinces of China. The taxonomic relationships with related species are discussed in this paper.

Description of a New Species of Kiotina Klapálek, 1907(Plecoptera: Perlidae) from Southern China

“…The new species can be distinguished from K. bifurcata Stark & Sivec, 2008 by the absence of bifurcated lateral spines on male tergum 10, and from K. resplendens Banks, 1939 by the presence of finger-shaped paraprocts and posteriorly projected hammer. The new species is most similar to K. bilobata Mo, Wang, Li &Murányi, 2019 andK. yexiaohani Su &Chen, 2020.…”

“…However, the new species exhibits dark body color, narrow finger-shaped notch on medial of male tergum 10, straight base of epiproct sclerite, dorsobasal aedeagal lobe, tongue-shaped dorsoapical aedeagal lobe and heart-shaped ventroapical aedeagal lobe. In K. bilobata, the body color is generally pale brown (which might be caused by the preservation in ethanol); the notch on medial area of male tergum 10 is wider and subtriangular; base of epiproct sclerite is curved; aedeagus has no dorsobasal lobe, tongue-shaped dorsoapical lobe or heart-shaped ventroapical lobe (Mo et al, 2019). When compared with K. yexiaohani, the new species can be easily separated by the different head pattern, much slender epiproct arms which with a much deeper median notch, much smaller spines on each side of epiproct sclerite, posteriorly projected hammer, and by different shaped aedeagus (Su & Chen, 2020).…”

“…To date, 15 Kiotina species are known worldwide, including 11 species from China, three from Japan and one from North Korea (DeWalt, Maehr, Hopkins, Neu-Becker, & Stueber, 2021). Recent contributions to the taxonomy of Kiotina were made by Stark & Sivec (2008), Mo, Wang, Li, & Murányi (2019) and Su & Chen (2020). The taxonomic changes, current status and type information of Chinese Kiotina species have been reviewed by Su & Chen (2020).…”