Neoperla wuzhishana Chen & Du, 2016 (A, C–E male B female), all from Yinggeling, Hainan Province A head and pronotum, dorsal view B head and pronotum, dorsal view C Aedeagus, lateral view D Large spines of aedeagal sac, ventral view E legs, dorsal view. Scale bars: 1 mm (A–C, E); 0.1 mm (D).