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