Tricholathys hebeiensis sp. nov. (河北毛隐蛛)

Wang, Lu-Yu, Peng, Xian-Jin & Zhang, Zhi-Sheng, 2023, The first record of Tricholathys Chamberlin & Ivie, 1935 (Araneae, Dictynidae) from China, with a new combination and descriptions of seven new species, ZooKeys 1185, pp. 255-267 : 255

Tricholathys hebeiensis sp. nov. (河北毛隐蛛)

Figs 6 , 7 , 16

Type materials.

Holotype female: China, Hebei Province, Yu County, Xiaowutai Mountains, 39°56′31″N, 114°56′36″ E, no detailed GPS data on the locality, 5 June 1998, W.L. Lue leg. (SWUC-T-DI-09-01).

Etymology.

The specific name is derived from Hebei Province, where the type locality is located.

Diagnosis.

This new species is similar to T. burangensis sp. nov. (Figs 2C, D , 3F, G ) in having the copulatory openings cochleate, the copulatory ducts semicircular, the spermathecae comma-shaped, and the fertilization ducts thin and hook-shaped, but it differs from that species in shape of the copulatory ducts, which are semicircular strongly bending and sclerotized (Figs 6A, B , 7B, C ).

Description.

Female (holotype). Habitus as in Fig. 7A . Total length 4.97. Prosoma 1.81 long, 1.32 wide; opisthosoma 3.16 long, 2.14 wide. Eye sizes and interdistances: AME 0.07, ALE 0.10, PME 0.08, PLE 0.08; AME-AME 0.07, AME-ALE 0.05, PME-PME 0.12, PME-PLE 0.09, ALE-PLE 0.05. MOA 0.21 long, anterior width 0.20, posterior width 0.27. Clypeus height 0.10. Chelicerae with 5 promarginal and 3 retromarginal teeth. Leg measurements: I 3.03 (0.93, 1.07, 0.63, 0.40); II 2.62 (0.82, 0.90, 0.56, 0.34); III 2.29(0.69, 0.76, 0.52, 0.32); IV 3.26 (0.97, 1.09, 0.78, 0.42). Leg formula: 4123.

Epigyne (Figs 6A, B , 7B, C ). Copulatory openings cochleate. Copulatory ducts e-shaped; strongly sclerotized part forming almost semicircle and 6 times longer than length of weakly sclerotized part. Spermathecae small, nearly pear-shaped; space between spermathecae twice as wide as diameter of spermathecae.

Male. Unknown.

Distribution.

Known only from the type locality, Hebei, China (Fig. 16 ).

Figures

Figure 2. Tricholathys burangensis sp. nov. A, B holotype male C, D paratype female A left male palp, ventral view B left male palp, retrolateral view C epigyne, ventral view D epigyne, dorsal view. Abbreviations: AA = anterior arm of conductor; CD = copulatory duct; CO = copulatory opening; Em = embolus; FD = fertilization duct; PA = posterior arm of conductor; RTA = retrolaterial tibial apophysis; Sp = spermatheca.

Figure 3. Tricholathys burangensis sp. nov. A, C-E holotype male B, F, G paratype female A male habitus, dorsal view B female habitus, dorsal view C left male palp, prolateral view D same, ventral view E same, retrolateral view F epigyne, ventral view G same, dorsal view.

Figure 6. Tricholathys hebeiensis sp. nov. holotype female A epigyne, ventral view B same, dorsal view. Abbreviations: CD = copulatory duct; CO = copulatory opening; FD = fertilization duct; Sp = spermatheca.

Figure 7. Tricholathys hebeiensis sp. nov., holotype female A female habitus, dorsal view B epigyne, ventral view C same, dorsal view.

Figure 16. Distribution of Tricholathys in China.