Wilhelmia, Enderlein, 1921

Key to species (female) of the subgenus Wilhelmia View in CoL from China

1. Strings of scutum narrower................................................................. S. (W.) lineatum View in CoL

- Strings of scutum normal............................................................................... 2

2. Scutum with grayish white hairs......................................................................... 3

- Scutum with golden or yellow-white hairs.................................................................. 6

3. Swollen part of genital fork arms with obvious angular inner projections.......................... S. (W.) angustifurca View in CoL

- Swollen part of genital fork arms without angular inner projections.............................................. 4

4. Basitarsus of foreleg about 9 times as long as the width............................................ S. (W.) equinun

- Basitarsus of foreleg about 7 times as long as the width....................................................... 5

5. Fore tabia, mid tabia and hind tabia brown and the middle parts yellow; basal 3/4 of hind basitarsus yellow.................................................................................................... S. (W.) zhangyense View in CoL

- Basal 1/4~1/3 of fore tabia and mid tabia yellow; basal 3/5 of hind tibia yellow and the middle part of hind basitarsus yellow............................................................................................ S. (W.) lama View in CoL

6. Genital fork arms with inner projection.................................................................... 7

- Genital fork arms without inner projection................................................................ 10

7. Basal 2/3 of basitarsus of hindleg yellow................................................................... 8

- A great amount of basitarsus of hindleg yellow.............................................................. 9

8. Genital fork arms with angular inner projection............................................. S. (W.) qingxilingense View in CoL

- Genital fork arms with papillary inner projection............................................... S. (W.) wushiense View in CoL

9. Mid tabia and hind tibia brown and the middle part yellow........................................ S. (W.) germuense View in CoL

- Fore tabia, mid tabia and hind tabia brown except basal part yellow............................... S. (W.) qinghaiense View in CoL

10. The length of sensory vesicle 0.25 times that of the third palpomere................................. S. (W.) takahasii View in CoL

- The length of sensory vesicle 0.35~0.55 times that of the third palpomere........................................ 11

11. Genital fork arms with lateral projection.................................................................. 12

- Genital fork arms without lateral projection............................................................... 14

12. Genital fork arms not swollen........................................ S. (W.) xichangense An, Tan & Wang sp. nov.

- Genital fork arms swollen............................................................................. 13

13. Swollen part of genital fork arms subquadrate............................................... S. (W.) pseudequinum View in CoL

- Swollen part of genital fork arms subtriangular.................................................. S. (W.) pinnatum View in CoL

14. Basal 3/5~2/3 of hind basitarsus yellow................................................................... 14

- Basitarsus of hind basitarsus brown, and the middle part yellow................................... S. (W.) xingyiense View in CoL

15. The upper part of the frons with medium longitudinal groove.................................... S. (W.) veltistshevi View in CoL

- The upper part of the frons without medium longitudinal groove............................................... 15

16. The length of sensory vesicle 0.4~0.55 times that of the third palpomere......................................... 16

- The length of sensory vesicle 0.3 times that of the third palpomere............................................. 17

17. Genital fork arms without inner projection................................................. S. (W.) eurybrachium View in CoL

- Genital fork arms with developed inner projection............................................. S. (W.) pekingense View in CoL

18. Hind tibia with black ring; genital plate triangular......................................... S. (W.) tongbaishanense View in CoL

- Hind tibia without black ring; genital plate elongated......................................... S. (W.) dunhuangense View in CoL