Anahita medog Li & Yao, 2022

Wang, Lu-Yu, Irfan, Muhammad, Zhang, Feng & Zhang, Zhi-Sheng, 2024, On three species of ctenids (Araneae: Ctenidae) from Tibet, China, Zootaxa 5458 (1), pp. 119-129 : 123-126

Anahita medog Li & Yao, 2022 (OiNJDZḿĦ)

Figures 3–4 , 7

Anahita medog Li & Yao , in Chu et al., 2022: 15, figs 10a–c, 11a–f, 14a (♂ ♀).

Type material. 1 male (holotype) and 1 female (paretype), deposited in the Institute of Zoology , Chinese Academy of Sciences ( IZCAS) in Beijing, China. not examined.

Material examined. CHINA: Tibet: 4 males and 6 females, Chayu County, Xiachayu Township , 28.456867°N, 97.044633°E, elev. 1464 m, 26 May 2019, L.Y. Wang, P. Liu, T. Yuan and H. Wang leg. ; 2 females, Medog County, Medog Township, Yarang Village , 29.295967°N, 95.28045°E, elev. 761 m, 22 May 2019, L.Y. Wang, P. Liu, T. Yuan and H. Wang leg.

Diagnosis. A. medog can be distinguished from all other congeners by the following characters ( Figs 3A–D , 4C–G ): embolus originated at about 6 o’clock position from tegulum, distal end abruptly narrow with pointed tip; tegular apophysis dorsally grooved, almost round in ventral view; median plate of epigyne almost triangular, copulatory opening situated within median plate, spermathecae hook-shaped.

Description. Male ( Fig. 4A ) total length 7.12. Prosoma 3.66 long, 2.70 wide; opisthosoma 3.53 long, 2.05 wide. Dorsum of prosoma yellow brown. Chelicerae stout, yellow brown, with four promarginal and five retromarginal teeth. Gnathocoxae and labium yellowish brown, longer than wide. Sternum yellowish brown, heart-shaped, with sparse brown hairs. Legs yellow brown. Tibia I and II with five pairs of ventral spines; metatarsus I and II with three pairs of ventral spines. Leg formula: 4123. Opisthosoma oval. Dorsum yellow brown with black brown markings. Venter yellowish brown.

Male palp ( Figs 3A–B , 4C–E ). Tibia simple with thick spines and without any apophyses; tegulum slightly expanded, sperm duct originating from prolaterally, running along the tegular margin to embolus; tegular apophysis originated from the center of tegulum, ventrally grooved and almost round in shape; embolus C-shaped, originated at about 6 o’clock position from tegulum, distal end abruptly narrow with pointed tip.

Female ( Fig. 4B ) total length 8.47. Prosoma 3.92 long, 3.07 wide; opisthosoma 4.55 long, 2.82 wide.

Genitalia ( Figs 3C–D , 4F–G ). Median septum broad, almost triangular; copulatory opening present within the median plate; spermathecae hook-shaped.

Distribution. China (Tibet) ( Fig. 7 ).

Habitat. This species was found in the grass in tropical rainforests.

Figures

FIGURE 3. Anahita medog Li & Yao, 2022, male (A–B) and female (C–D). A. Left palp, ventral view; B. Same, retrolateral view; C. Epigyne, ventral view; D. Vulva, dorsal view. Abbreviations: C, conductor; CD, copulatory duct; CO, copulatory opening; E, embolus; FD, fertilization duct; S, spermathecae; TA, tegular apophysis.

FIGURE 4. Anahita medog Li & Yao, 2022, male (A, C–E) and female (B, F–G). A–B Habitus, dorsal view; C. Left male palp, prolateral view. D. Same, ventral view. E. Same, retrolateral view. F. Epigyne, ventral view; G. Vulva, dorsal view.

FIGURE 7. Distribution records of Amauropelma medogensis sp. nov., Anahita medog Li & Yao, 2022 and Bowie rotundus sp. nov. in eastern Tibet.