Sarax sinensis Wu et al., 2022

Xu, Yiting, Yu, Kun, Zhang, Shuyuan, Zuo, Anru & Zhang, Feng, 2025, Description of a second species of Sarax Simon, 1892 (Amblypygi, Charinidae) from China, Zootaxa 5666 (4), pp. 489-508 : 501-505

Sarax sinensis Wu et al., 2022

Figs 4 , 5E–F, H, K , 6B, D , 7D–F, I–J , 8B , 9E, G .

Chinese name: 中华aeDze

Type material. Holotype ♂ (ECNU-IV-0004) and paratypes, 4 juveniles (ECNU-IV-0003; 0005~0007), CHINA: Fujian Province, Fuzhou City, 26.03°N, 119.30°E, 39m elev., leg. R. Yu and Y. Wang; deposited in the Museum of Biology, East China Normal University ( ECNU), not examined.

Material examined. 2♂ 3♀ 3j (MHBU-AMB-2023-01~05), CHINA: Fujian Province, Fuzhou City, Cangshan District, near Hamashan , 26.0306°N, 119.3007°E, 47m elev., 2023, leg. J. Gong.

Diagnosis. see Wu et al. 2022: 401.

Additional description. Male (MHBU-AMB-2023-03; Figs 4A, C , 7D–F, I–J , 9E ). Opisthosoma. Ventral sacs present, ventral sac covers (VSC) absent ( Fig. 9E ). Gonopod ( Figs 7D–F, I–J ). Upper margin of Fi sclerotized; basal part of LoD and dorsal side of LoL1 sclerotized with small denticles. LaM hidden behind LoD in dorsal view, tip of LaM sharp, slightly higher than that in LoD. PI with near longitudinally arranged hyperbolic paraboloid, with a rough upper margin.

Female (MHBU-AMB-2023-04; Figs 4B, D–J , 5E–F, H, K , 6B, D , 8B , 9G ). Body features mostly like those in males.

Genitalia. Margin of genital operculum nearly semicircular, without obvious extension. Gonopod almost conical, distal half gradually narrowing to small and roundly blunt tip ( Fig. 9G ).

Pedipalp. Obviously shorter than in males ( Figs 4E, I , 5 E–F , 6B, D ). Coxa with many fine setae on the ventral surface and denser near the ventral mesal region. Trochanter with setae on antero-dorsal side, ventral apophysis small and setiform ( Figs 6B, D ). Femur with four dorsal spines, three ventral spines, proximal first spine longest. Patella with four dorsal spines and three ventral spines; distal 1/3 of ventral side with three setiferous tubercles. Tibia with two large dorsal spines; one ventral spine and one ventral setiferous tubercle. Tarsus like the male ( Fig. 4F ).

Measurements. see Table 4.

Variability. Count of articles of tibia I ranging from 20 to 21. For detailed variation of measurements, see Table 4.

Distribution: China (Fujian).

Figures

FIGURE 4. Sarax sinensis Wu et al., 2022, topotypes, male (MHBU-AMB-2023-03; A, C) and female (MHBU-AMB-2023- 04; B–D, E–J). A–D. Habitus; E–F. Pedipalp; G. Tarsus and claw of pedipalp; H. Right chelicera; I. Tarsus of leg IV; J. Basitibia IV, show three pseudo-articles; in dorsal (A–B, E, J), ventral (C–D, F, G), prolateral (H) and retrolateral (I) view.

FIGURE 5. Sarax yunnan sp. nov. holotype male (A–B, G, I–J) and paratype female (MHBU-AMB-2024-1004; C–D); Sarax sinensis female (MHBU-AMB-2023-04; E– F, H, K). A–F. Pedipalp; G–H. Basitibia IV, show pseudo-articles; I. Trichobothria on right distitibia IV; J–K. Chelicera; in dorsal (B, C, F, H–I), ventral (A, D, E), prolateral (G, K) and retrolateral (J) view.

FIGURE 6. Pedipalpi of Sarax yunnan sp. nov. holotype male (A, C) and Sarax sinensis female (MHBU-AMB-2023-04; B, D), dorsal (A–B) and ventral (C–D).

FIGURE 7. Male gonopods of Sarax yunnan sp. nov. (A–C, G–H) and Sarax sinensis (D–F, I–J), in dorsal (A–B, D–E, G, I) and ventral (C, F, H, J). Abbreviations: LaM, lamina medialis; LoD, lobus dorsalis; LoL1, lobus lateralis primus; LoL2, lobus lateralis secundus; Fi, fistula; PI, processus internus of gonopod.

FIGURE 8. Tibia and tarsus of leg I of Sarax spp. A. S. yunnan sp. nov. holotype male; B. Sarax sinensis female (MHBU- AMB-2023-04).

FIGURE 9. Opisthosomal and genital features of Sarax yunnan sp. nov. (A–D, F, H) and Sarax sinensis Wu et al., 2022 (E, G), male (A, C, E) and female (B, D, F–H). A–E. Anterior part of ventral opisthosoma; F–H. Female gonopod, in dorsal (F) and posterior (G, H) view. Abbreviations: TEG, triangular extension of genital operculum; VSC, ventral sac covers.