A synopsis of Kiotina Klapálek, 1907 (Plecoptera: Perlidae) from China, with description of a new species from Zhejiang Province

Abstract

A new species of Kiotina, K. yexiaohani sp. nov. is described from Zhejiang Province of southeastern China. The male of the new species is characterized by the V-shaped epiproct sclerite with thick, out-curved arms and a fusiform base. The apical half of subgenital plate sub-trapezoidal with a slightly notched apex distinguishes the female of the new species. Information on the types and available descriptions of Chinese Kiotina species are summarized. Additionally, an unassociated female of a Kiotina species is described and illustrated.

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

“…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.…”

“…1). All currently recognized Kiotina species in China are restricted in the southeastern provinces, including Zhejiang, Fujian, Guangdong, Taiwan, Jiangxi and Guangxi provinces (Su & Chen, 2020). Further investigations of these areas are expected to reveal more undescribed species of Kiotina.…”

“…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).…”

“…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). Current species delimitation in Kiotina is conducted mainly based on the shape of epiproct sclerite, spines on male tergum 10 and the shape of female subgenital plate (Stark & Sivec, 2008;Su & Chen, 2020).…”