Xiphovelia

Ye, Zhen & Bu, Wenjun, 2015, A review of the genus Xiphovelia Lundblad, 1933 (Hemiptera: Heteroptera: Veliidae) from China, with descriptions of three new species, Zootaxa 3946 (2), pp. 190-200 : 199

Key to the species of Xiphovelia occurring in China

1. Legs black and shining. Male: abdominal sternum VIII slightly concave medially ( Figs. 22, 23 ). Female: connexiva largely widen and flat ( Fig. 7 ).................................................................. X. denigrata sp. nov.

- Legs yellowish brown. Male: abdominal sternum VIII without any concavity. Female: connexiva relatively narrowed and erect or reflexed........................................................................................... 2

2. Metanotum with a pair of rounded, silvery hair markings. Female: hind portions of connexiva in apterous female reflexed ( Fig. 4 ).................................................................................... X. reflexa sp. nov.

- Metanotum without a pair of rounded, silvery hair markings. Female: hind portions of connexiva in apterous female erect...3

3. Head dorsum in apterous male yellowish brown ( Fig. 8 ); the ear-like process on each side of pygophore relatively wide ( Fig. 28 ).................................................................................... X. fulva sp. nov.

- Head dorsum in apterous male black ( Fig. 1 ); the ear-like process on each side of pygophore narrow ( Fig. 26 )......................................................................................... X. glauca Esaki & Miyamoto

Figures

FIGURES 21 – 29. Abdominal segment VIII and pygophore of Xiphovelia spp. (males). 21 – 25, abdominal segment VIII (21. X. glauca Esaki & Miyamoto, 1959; 22. X. denigrata sp. nov., ventral view; 23. X. denigrata sp. nov., ventrolateral view; 24. X. fulva sp. nov.; 25. X. reflexa sp. nov.); 26 – 29, pygophore in dorsal view (26. X. glauca Esaki & Miyamoto, 1959; 27. X. denigrata sp. nov.; 28. X. fulva sp. nov.; 29. X. reflexa sp. nov.). Scale 0.1 mm.

FIGURES 5 – 10. Habitus of Xiphovelia spp .. 5 – 7. X. denigrata sp. nov. (5. apterous male; 6. macropterous male; 7. apterous female); 8 – 10. X. fulva sp. nov. (8. apterous male; 9. macropterous male; 10. macropterous female). Scale 1.0 mm.

FIGURES 1 – 4. Habitus of Xiphovelia spp .. 1 – 2. X. glauca Esaki & Miyamoto, 1959 (1. apterous male; 2. apterous female); 3 – 4. X. reflexa sp. nov. (3. apterous male; 4. apterous female). Scale 1.0 mm.