Monaeses xizang Wang, Lu & Zhang, 2024

Wang, Lu-Yu, Mu, Yan-Nan, Lu, Qian-Le, Xu, Yong-Qiang, Bu, Hai-Tao, Zhang, Feng & Zhang, Zhi-Sheng, 2024, Description of six new crab-spider species and first description of the male of Pharta xizang Liu & Yao, 2023 from Medog, Xizang, China (Araneae, Thomisidae), ZooKeys 1217, pp. 195-213 : 195-213

publication ID	https://doi.org/ 10.3897/zookeys.1217.127555
publication LSID	lsid:zoobank.org:pub:B7E1DDC6-9834-42EA-A80E-77ABAADF14F1
DOI	https://doi.org/10.5281/zenodo.14026830
persistent identifier	https://treatment.plazi.org/id/6E866803-36E5-4324-8E7A-F8F686965881
taxon LSID	lsid:zoobank.org:act:6E866803-36E5-4324-8E7A-F8F686965881
treatment provided by	ZooKeys by Pensoft
scientific name	Monaeses xizang Wang, Lu & Zhang
status	sp. nov.

Treatment

Monaeses xizang Wang, Lu & Zhang sp. nov.

Figs 1 C, D View Figure 1 , 3 M, N View Figure 3 , 5 View Figure 5 , 11 View Figure 11

Type material.

Holotype • ♂ ( SWUC -T-THO-02-01 ), China, Xizang, Medog County, Mirage Observation Deck , 29°20'36"N, 95°20'43"E, elev. 1297 m, 8 July 2023, Z. S. Zhang, L. Y. Wang, Q. L. Lu and X. L. Chen leg. GoogleMaps Paratype: • 1 ♀ ( SWUC -T-THO-02-02 ), same data as for holotype GoogleMaps .

Etymology.

The specific name is derived from the type locality; it is a noun in apposition.

Diagnosis.

The new species resembles M. aciculus (Simon, 1903) ( Song and Zhu 1997: 59, fig. 35 A – H) in having the ventral tibial apophysis of the same shape and spermathecae compressed, but the new species differs from M. aciculus in having the ventral tibial apophysis shorter than retrolateral tibial apophysis (vs as long as retrolateral tibial apophysis in M. aciculus ), a short embolus originating at approximately 11 - o’clock (vs long and originating at approximately 8 - o’clock in M. aciculus ), and comma-like copulatory ducts (vs U-shaped in M. aciculus ) (Fig. 5 View Figure 5 ).

Description.

Male holotype ( SWUC -T-THO-02-01 , Figs 1 C View Figure 1 , 3 M View Figure 3 ) total length 7.31. Prosoma 2.24 long, 1.82 wide; opisthosoma 5.33 long, 1.24 wide. Carapace yellow brown. Eye sizes and interdistances: AME 0.06, ALE 0.14, PME 0.09, PLE 0.18; AME – AME 0.17, AME – ALE 0.19, PME – PME 0.34, PME – PLE 0.29, ALE – PLE 0.31. MOA 0.40 long, anterior width 0.30, posterior width 0.51. Clypeus height 0.45. Chelicerae yellow brown. Labium and endites yellow brown, longer than wide. Sternum yellow-brown and scutellate, with brown hairs. Leg measurements: I 18.79 (5.43, 6.98, 4.57, 1.81); II 16.96 (5.06, 6.25, 3.94, 1.71); III 6.61 (2.10, 2.57, 1.09, 0.85); IV 7.81 (3.28, 2.52, 1.08, 0.93). Leg formula: 1243. Opisthosoma columnar, yellow brown. Spinnerets yellow-brown.

Palp (Fig. 5 A, B View Figure 5 ). Tibia ½ length of cymbium. Ventral tibial apophysis columnar, with a curved end. Retrolateral tibial apophysis sclerous, somewhat triangular, with a sharp end. Embolus originating at approximately 11 - o’clock position, slender, curved along with bulb, tip staying in cymbial furrow.

Female paratype ( SWUC -T-THO-02-02 , Figs 1 D View Figure 1 , 3 N View Figure 3 ) total length 10.70. Prosoma 3.23 long, 2.35 wide; opisthosoma 7.28 long, 1.88 wide. Eye sizes and interdistances: AME 0.07, ALE 0.22, PME 0.11, PLE, 0.19; AME – AME 0.32, AME – ALE 0.27, PME – PME 0.52, PME – PLE 041, ALE – PLE 0.39. MOA 0.49 long, anterior width 0.46, posterior width 0.74. Clypeus height 0.58. Leg measurements: I 16.12 (5.05, 6.17, 3.34, 1.56); II 14.41 (4.53, 5.52, 2.88, 1.48); III 14.30 (4.39, 5.53, 2.98, 1.40); IV 8.37 (3.57, 2.81, 1.11, 0.88). Leg formula: 1234.

Epigyne (Fig. 5 C, D View Figure 5 ). Epigynal plate almost rounded. Copulatory openings slit-like, distant from each other. Copulatory ducts comma-like. Spermathecae folded. Fertilization ducts crescent-shaped.

Distribution.

Known only from the type locality, Medog, Xizang, China (Fig. 11 View Figure 11 ).