Styloperla spinicercia Wu, 1935

Styloperla spinicercia: Wu, 1935: 237; Uchida & Isobe, 1989: 158; Stark & Sivec, 2007: 15; Yang & Li, 2018: 55.

Materials examined: The specimens re-studied from Guangxi, Guizhou, and Jiangxi were recorded in Zhao (2019) and Zhao et al. (2019).

Distribution: Fujian, Guangdong, Guangxi, Guizhou, Jiangxi and Zhejiang.

Remarks: The shorter process lateral to the basal cercal segment has forks of different sizes and shapes and on some males are asymmetric (Fig. 5A–C). The small lateral spines present along the longer medial process on basal cercal segment varies in distance from the apex, sometimes as much as two-fold (Figs. 6A–B). In one particular male, the left and right process on basal cercal segment are completely asymmetric, with one side having a shape similar to that of specimens (Zhao et al. 2019, Mo et al. 2022) previously determined as S. jiangxiensis (Figs. 6C – D).