Key to males of species of Stenohya Beier, 1967 from China
1. Pedipalpal femur with small tubercles or smooth.............................................................................. 2
– Pedipalpal femur with large and conspicuous projection ................................................................ 12
2. Pedipalpal chelal hand with projection on prolateral surface............................................................ 3
– Pedipalpal chelal hand without prolateral projection ........................................................................ 6
3. Prolateral projection of chelal hand with pointed projection............................................................. 4
– Prolateral projection of chelal hand with bifid, hornlike bulges........................................................ 5
4. Pedipalpal femur with a depression at the base of prolateral face; movable finger basally curved in ventral view ................................................................................ S. curvata Zhao, Zhang & Jia, 2011
– Pedipalpal with straight femur; movable finger straight or slightly procurved ................................... ................................................................................................... S. meiacantha Yang & Zhang, 2013
5. Pedipalpal fixed chelal finger with 67–70 teeth.................... S. harveyi Zhao, Guo & Zhang sp. nov.
– Pedipalpal fixed chelal finger with 91–94 teeth.................... S. bicornuta Guo, Zang & Zhang, 2019
6. Pedipalpal femur strongly procurved................................................................................................. 7
– Pedipalpal femur straight or slightly procurved ................................................................................ 8
7. Apex of pedipalpal coxa only with four long setae, short acicular seta absent ................................... ................................................................................................. S. arcuata Guo, Zang & Zhang, 2019
– Apex of pedipalpal coxa with three long setae and 10–12 short acicular ones ................................... ........................................................................................................... S. setulosa Guo & Zhang, 2016
8. Each of chelal fingers with more than 85 teeth.................................................................................. 9
– Each of chelal fingers with fewer than 85 teeth............................................................................... 10
9. Pedipalpal femur distally thickened, noticeably thicker than the basal section................................... ............................................................................................. S. tengchongensis Yang & Zhang, 2013
– Pedipalpal femur not distally thickened ..................................... S. hainanensis Guo & Zhang, 2016
10. Carapace with fewer than 30 setae....................................... S. xiningensis Zhao, Zhang & Jia, 2011
– Carapace with more than 30 setae ....................................................................................................11
11. Pedipalpal femur 6.79–7.20 times as long as broad ............................. S. pengae Hu & Zhang, 2012
– Pedipalpal femur 7.64–7.96 times as long as broad ............................. S. huangi Hu & Zhang, 2012
12. Pedipalpal femur with intumescence on the dorsal side.................................................................. 13
– Pedipalpal femur without intumescence on the dorsal side............................................................. 15
13. Pedipalpal femur with one intumescence on the dorsal side; leg I basitarsus and telotarsus with a large irregular projection and a smaller finger-shaped projection....................................................... ............................................................................................ S. ungulata Zhao, Guo & Zhang sp. nov.
– Pedipalpal femur with two intumescences on the dorsal side ......................................................... 14
14. Pedipalpal chelal hand with several small granular processes on the retrolateral side........................ ............................................................................................ S. biverticis Zhao, Guo & Zhang sp. nov.
– Pedipalpal chelal hand with many small granular processes on the prolateral, retrolateral and dorsal sides .................................................................................. S. margarita Zhao, Guo & Zhang sp. nov.
15. Pedipalpal patella wth small, triangular-shaped projection............................................................. 16
– Pedipalpal patella smooth ................................................................................................................ 20
16. Pedipalpal chelal hand with fewer than 20 spinous apophyses ....................................................... 17
– Pedipalpal chelal hand with more than 20 spinous apophyses ........................................................ 19
17. Basitarsus and telotarsus of leg I each with a large columnar projection............................................ ..................................................................................................... S. gibba Zhao, Guo & Zhang, 2024
– Basitarsus and telotarsus of leg I without projection....................................................................... 18
18. Pedipalpal patella with strong, long, peg-like projections on prolateral surface, plus a small projection placed near the base of this thorn ............................................ S. spinata Zhan, Feng & Zhang, 2023
– Pedipalpal patella with two small, triangular projections in the ⅓ and ⅔ prolateral positions ........... ............................................................................................... S. qianlei Zhao, Guo & Zhang sp. nov.
19. Pedipalpal chelal hand with a papillary projection on the ventral face; femur with a projection on the subdistal prolateral surface and several big tubercles in prolateral position ....................................... ............................................................................................... S. papillata Zhao, Guo & Zhang, 2024
– Pedipalpal chelal hand without projection on the ventral face; femur with a heart-shaped protuberance in the middle and a projection on the subterminal prolateral surface .................................................. .............................................................................................. S. cordata Zhao, Guo & Zhang sp. nov.
20. Pedipalpal chelal hand with fewer than 30 spinous apophyses ....................................................... 21
– Pedipalpal chelal hand with more than 30 spinous apophyses ........................................................ 23
21. Pedipalpal chelal hand swelling on the median dorsal side............. S. dongtianensis Li & Shi, 2023
– Pedipalpal chelal hand without swelling ......................................................................................... 22
22. Femur of leg I with an inward depression distally; femur with a projection on the subdistal prolateral surface and several big tubercles in prolateral position; the anterior half of the carapace noticeably protruding to the sides ............................................... S. guangmingensis Zhao, Guo & Zhang, 2024
– Femur of leg I without depression; tibia, basitarsus and telotarsus of leg I noticeably bent; the anterior half of the carapace slightly protruding to the sides ............. S. jiaxiani Zhao, Guo & Zhang sp. nov.
23. Pedipalpal femur with a large intumescence on the subbasal surface, a small intumescence and a columniform intumescence on the median surface and a projection on the subterminal prolateral surface; femur 4.25–4.77 times as long as broad...................................... S. jiahensis Li & Shi, 2023
– Pedipalpal femur with a projection on the subdistal prolateral surface and a polygonal protuberance in median prolateral position; femur 3.96–3.98 times as long as broad ................................................................................. S. polygonia Zhao, Guo & Zhang sp. nov.