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