Figures 7–17.Stenus wugongshanus. 7 male sternite VIII 8 male sternite IX 9 male tergites IX, X 10, 11 aedeagus 12 apical portion of paramere 13 expulsion hooks 14 female sternite VIII 15 female tergites IX, X 16 valvifers and spermatheca 17 spermatheca. Scale bars: 12–13: 0.1 mm; 7–11, 14–17: 0.25 mm.
Figures 18–27.Stenus mingyueshanus. 18 male sternite VIII 19 male sternite IX 20 male tergites IX, X 21, 22 aedeagus 23 apical portion of paramere 24 expulsion hooks 25 female sternite VIII 26 female tergites IX, X 27 valvifers. Scale bars: 23–24: 0.1 mm; 18–22, 25–27: 0.25 mm.
Figures 28–37.Stenus songxiaobini. 28 male sternite VIII 29 male sternite IX 30 male tergites IX, X 31, 32 aedeagus 33 apical portion of paramere 34 expulsion hooks 35 female sternite VIII 36 female tergites IX, X 37 valvifers. Scale bars: 33–34: 0.1 mm; 28–32, 35–37: 0.25 mm.