Key to Oxyopes species of Taiwan

1 R atio of female abdomen length to width greater than 2.5 (Fig. 11a); apex of male cymbium longer than two-thirds the total cymbium length (Fig. 6 c–e)............................................................................ 2

- Ratio of female abdomen length to width smaller than 2.5 (Fig. 11c); apex of male cymbium shorter than two-thirds the total cymbium length (Fig. 7 c–e)............................................................................ 5

2 Posterior edge of epigyne with a median protrusion (Figs 6a, 8a); male palp with two separate retrolateral tibial apophyses (Figs 6e, 8e)............................................................................................. 3

- Posterior edge of epigyne without a median protrusion (Fig. 3a); male palp with four or two adjacent retrolateral tibial apophyses (Fig. 3d)......................................................................................... 4

3 Median protrusion of epigyne acuminate; cymbium of male palp laterally extended at the base (Figs 6a, 6d)...................................................................................................... O. macilentus

- Median protrusion of epigyne column-shaped; cymbium of male palp without lateral extension at the base (Figs 8a, 8d).............................................................................................. O. striagatus

4 Epigyne shield-like in shape; base of cymbium with a hamulus-like process (see Lo & Lin 2016: figs 5–7)..... O. shushilae

- Posterior edge of epigyne semi-ring shaped; basse of cymbium without lateral extension (Figs 3a, 3d)........ O. fujianicus

5 Distal portion of copulatory ducts distinctly separated; dorsal retrolateral tibial apophysis spearhead-shaped and adjacent to ventral retrolateral tibial apophysis (Fig. 5 d–e)........................................................ O. hasta

- Copulatory ducts close distally; dorsal and ventral retrolateral tibial apophyses distinctly separated (Figs 7e, 10 d–e)....... 6

6 Copulatory ducts with distal transversal twist; dorsal retrolateral tibial apophysis incisor tooth-shaped (Figs 9 b-e).................................................................................................. O. taiwanensis

- Copulatory ducts question mark-shaped and without distal transversal twist; dorsal retrolateral tibial apophysis ridge-shaped (Figs 7 b-e).................................................................................. O. sertatus