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.