Vacrothele Tang & Yang 2022

Key to the known species of the genus Vacrothele Tang & Yang, 2022 1. Males ................................................................................................................................................. 2 – Females ............................................................................................................................................. 8 2. Palpal tibia with 6 dorsal spines ........................ V. pseudohunanica Tang, Wu, Zhao & Yang, 2022 – Palpal tibia more than 6 dorsal spines .............................................................................................. 3 3. Tibia II with 4 ventral spines. ........................................................................ V. fuyuanensis sp. nov. – Tibia II more than with 4 ventral spines ........................................................................................... 4 4. Embolus longer (5.43) ................................................................................ V. jiangkouensis sp. nov. – Embolus relatively short ................................................................................................................... 5 5. Embolus curved dorsally first, then ventrally .......................................... V. palpator (Pocock, 1901) – Embolus curved ventrally first, then dorsally ................................................................................... 3 6. Body smaller (9.4 mm); tibia I with seven spines (four ventral, two apical, one median spine) ....... ...................................................................... V. taiwanensis (Shimojana & Haupt, 1998) comb. nov. – Body larger ....................................................................................................................................... 7 7. Tibia I with 9 spines (five ventral, three prolateral, one retrolateral spine) ........................................ ...................................................................................................... V. yunnanica (Zhu & Song, 2000) – Tibia I with 5 ventral spines .............................................................................. V. baiseensis sp. nov. 8. Receptacula directed forward, turning laterally, and then inward and turning anteriorly, somewhat S-shaped ......................................................................................... V. hunanica (Zhu & Song, 2000) – Receptacula directed anteriorly, turning laterally, then dorsally, finally medially ............................ 9 9. Receptacula G-shaped .............................................................. V. emei (Lin & Li, 2021) comb. nov. – Receptacula non G-shaped ............................................................................................................. 10 10. Copulatory aperture thicker but joint of the copulatory aperture and spermatheca very thin ............ ............................................................................................ V. uncata Tang, Wu, Zhao & Yang, 2022 – Receptacula short and finger-like ......................................... V. digitata (Chen, Jiang & Yang, 2020)