Sialis

Liu, Xingyue & Yang, Ding, 2006, Revision of the genus Sialis from Oriental China (Megaloptera: Sialidae), Zootaxa 1108, pp. 23-35 : 24

Key to adults of Sialis from Oriental China

1. Apex of abdomen with broad, rounded ovipositor (female) ......................................... 5

­ Apex of abdomen without ovipositor but with a somewhat complicated assemblage of parts (male).................................................................................................................... 2

2. Pronotum entirely black ................................................................................................ 3

­ Pronotum entirely orange or yellowish brown.............................................................. 4

3. Ninth sternite shorter than ninth tergite, with round posterior margin ( Fig. 14 )............. ........................................................................................................................ S. sinensis

­ Ninth sternite longer than ninth tergite, with incised posterior margin ( Figs. 11, 13 ) .... ............................................................................................................... S. kunmingensis

4. Terminal plate long ( Fig. 7 ); genital plate with median portion subtriangularly expanded ( Figs. 7–8 ) ...................................................................................... S. elegans

­ Terminal plate short ( Figs. 17, 18 ); genital plate with median portion quadrately expanded ( Fig. 19 ) ................................................................................... S. versicoloris

5. Pronotum entirely black ................................................................................. S. sinensis

­ Pronotum entirely orange or yellowish brown.............................................................. 6

6. Wings narrow, about 1/3 of length ( Fig. 2 ); eighth sternite without posterior notch ( Fig. 10 ) .................................................................................................. S. jianfengensis

­ Wings wide, about 1/2 of length ( Figs. 1 , 6 ); eighth sternite with posterior notch ( Figs. 9 , 20 ) ............................................................................................................................... ....................................................................................................................................... 7

7. Head orange; eighth sternite with anterolateral portion widened ( Fig. 20 ) .................... .................................................................................................................. S. versicoloris

­ Head black; eighth sternite with anterolateral portion not widened ( Fig. 9 ).................. ......................................................................................................................... S. elegans

Figures

FIGURES 10. Female genitalia of Sialis jianfengensis Yang, Yang & Hu, ventral view. Scale line: 0.5 mm.

FIGURES 14 – 16. Genitalia of Sialis sinensis Banks. 14. Male genitalia, lateral view. 15. Male genitalia, ventral view. 16. Female genitalia, ventral view. Scale lines: 0.5 mm.

FIGURES 11 – 13. Genitalia of Sialis kunmingensis sp. nov. 11. Male genitalia, lateral view. 12. Male genitalia, caudal view. 13. Male ninth sternite, ventral view. Scale lines: 0.5 mm.

FIGURES 7 – 9. Genitalia of Sialis elegans sp. nov. 7. Male genitalia, lateral view. 8. Male genitalia, caudal view. 9. Female genitalia, ventral view. Scale lines: 0.5 mm.

FIGURES 17 – 20. Genitalia of Sialis versicoloris sp. nov. 17. Male genitalia, lateral view. 18. Male genitalia, caudal view. 19. Genital plate, lateral view. 20. Female genitalia, ventral view. Scale lines: 0.5 mm.

FIGURES 1 – 3. Habitus photos of the Sialis species from Oriental China. 1. S. elegans sp. nov. (Paratype). 2. S. jianfengensis Yang, Yang & Hu (Holotype). 3. S. kunmingensis sp. nov. (Holotype).

FIGURES 4 – 6. Habitus photos of the Sialis species from Oriental China. 4. S. sinensis Banks. 5. S. versicoloris sp. nov. (Holotype). 6. S. versicoloris sp. nov. (Paratype).