Stenus

Hadsund Syd

Figures 1, 2. Habitus of Stenus cangshanus in dorsal and ventral view. Scale = 1 mm.

Figure 1.Habitus of Stenus huapingensis in dorsal and ventral view. Scale = 1 mm.

Figures 9–16.9, 11, 13, 15, 16 Aedeagi of Stenus. 10, 12, 14 Spermathecae of Stenus 9, 10 Stenus coronatus 11, 12 Stenus trigonuroides13, 14 Stenus pilosiventris 15 Stenus puthzi 16 Stenus melanarius melanarius. Scales = 0.25 mm.

Washtenaw County, Michigan

Hadsund Syd

Figures 11–21. Stenus cangshanus. 11male sternite VIII 12 male sternite IX 13 male tergites IX, X 14, 15 aedeagus 16 apical portion of paramere 17 expulsion hooks 18 female sternite VIII 19 female tergites IX, X 20 valvifers and spermatheca 21 spermatheca. Scales = 0.1 mm (16, 17), scales = 0.25 mm (11–15, 18–21).

Figures 5.Stenus huapingensis A male sternite VIII B male sternite IX C male tergites IX, X D, E aedeagus F apical portion of paramere G expulsion hooks H female sternite VIII I female tergites IX, X J valvifers and spermatheca K spermatheca. Scales = 0.25 mm.

Figures 17–25. 17–22, 24, 25. Aedeagi of Stenus and Dianous 23 Internal plate of aedeagus of Stenus. 17 Stenus juno 18 Stenus secretus 19 Stenus alienus20 Stenus scabratus 21 Stenus deceptiosus 22, 23 Stenus falsator24 Dianous inaequalis inaequalis 25Dianous chinensis. Scales = 0.25 mm.

Hadsund Syd

Figures 3, 4. Habitus of Stenus hewenjiae in dorsal and ventral view. Scale = 1 mm.

Figure 2.Habitus of Stenus zhujianqingi in dorsal and ventral view. Scale = 1 mm.

Figures 17–25. 17–22, 24, 25. Aedeagi of Stenus and Dianous 23 Internal plate of aedeagus of Stenus. 17 Stenus juno 18 Stenus secretus 19 Stenus alienus20 Stenus scabratus 21 Stenus deceptiosus 22, 23 Stenus falsator24 Dianous inaequalis inaequalis 25Dianous chinensis. Scales = 0.25 mm.

Hadsund Syd

Figures 22–32. Stenus hewenjiae. 22 male sternite VIII 23 male sternite IX 24 male tergites IX, X 25, 26 aedeagus 27 apical portion of paramere 28 expulsion hooks 29 female sternite VIII 30 female tergites IX, X 31 valvifers and spermatheca 32 spermatheca. Scales = 0.1 mm (27, 28), scales = 0.25 mm (22–26, 29–32).

Figures 6.Stenus zhujianqingi A male sternite VIII B male sternite IX C male tergites IX, X D, E aedeagus F apical portion of paramere G expulsion hooks H female sternite VIII I female tergites IX, X J valvifers and spermatheca K spermatheca. Scales = 0.25 mm.

Figures 1–4.Habitus of Stenus. 1, 2 Stenus biwenxuani 3, 4 Stenus liupanshanus. Scales = 1 mm.

Hadsund Syd

Figures 5, 6. Habitus of Stenus taiyangshanus in dorsal and ventral view. Scale = 1 mm.

Figures 26–31.Stenus biwenxuani. 26 male sternite VIII 27 male sternite IX 28 male tergites IX, X 29, 30 aedeagus 31 sclerotized plate of aedeagus. Scales = 0.25 mm.

Sødring, Randers Fjord

Figures 33–39. Stenus taiyangshanus. 33 male sternite VIII 34 male sternite IX 35 male tergites IX, X 36, 37 aedeagus 38 apical portion of paramere 39 expulsion hooks. Scales = 0.1 mm (38, 39), scales = 0.25 mm (33–37).

Figures 1–4.Habitus of Stenus. 1, 2 Stenus biwenxuani 3, 4 Stenus liupanshanus. Scales = 1 mm.

Sødring, Randers Fjord