Key to the species of the genus Wasaka gen. nov.

1 Males ............................................................................................... 2

– Females............................................................................................. 5

2 Embolus with broad base, longitudinally compressed, with retrolaterally directed tip (Figs 162, 164).................... 3

– Embolus with narrow base and fine distal section, tip directed towards distal end of cymbium (Figs 163, 165)............ 4

3 Base of embolus nearly transverse, distal margin of embolus tip at 30° to longitudinal axis of palp (Fig. 162)................................................................................................... W. imitatrix sp. nov.

– Base of embolus oblique, distal margin of embolus tip at 45° to longitudinal axis of palp (Fig. 164)....... W. occulta sp. nov.

4 Distal section of embolus coil transverse, with nearly 90° bend; tip long, directed distally and slightly retrolaterally (Fig. 163).................................................................................... W. montana sp. nov.

– Distal section of embolus oblique, with slight distal curve; tip short, directed distally and slightly prolaterally (Fig. 165)......................................................................................... W. ventralis sp. nov.

5 Epigyne with large, strongly sclerotised 6-shaped ridges; copulatory ducts very short, directed anteriorly (Figs 168, 176)... 6

– Female with weakly sclerotised coiled or round ridges; copulatory ducts long, directed transversely towards ST II (Figs 172, 180)................................................................................................ 7

6 Epigynal ridges nearly meeting medially; copulatory openings slightly curved (Fig. 168).............. W. imitatrix sp. nov.

– Epigynal ridges clearly separated medially; copulatory openings strongly curved (Fig. 176)............. W. occulta sp. nov.

7 Copulatory openings curved towards posterior; copulatory ducts broad, initially directed towards midline of epigyne (Fig. 172).................................................................................... W. montana sp. nov.

– Copulatory openings curved towards anterior; copulatory ducts narrow, initially directed laterally and posteriorly before bend- ing towards midline of epigyne (Fig. 180).................................................. W. ventralis sp. nov.