Moneta yinae Gan, Mi & Wang, 2025

Moneta yinae Gan, Mi & Wang sp. nov.

Figs 3 View Figure 3 , 4 View Figure 4 , 8 View Figure 8

Type material.

Holotype • ♂ ( TRU -XZ-THR-0021 ), China: Xizang Autonomous Region, Linzhi City, Chayu County, Cibagou National Nature Reserve ( 28°36.03'N, 97°4.01'E, c. 2200 m), 22–27.VI.2023, C. Wang leg. GoogleMaps Paratypes • 29 ♀ 12 ♂ ( TRU -XZ-THR-0022 –0062), same data as for holotype GoogleMaps ; • 1 ♀ 1 ♂ ( TRU -XZ-THR-0063 –0064), Motuo County, Beibeng Township, De'ergong Village ( 29°10.84'N, 95°8.67'E, c. 2200 m), 25.V.2024, X. Q. Mi et al. leg GoogleMaps .

Etymology.

The epithet is a patronym in honor of Prof. Changming Yin (late), who contributed to the taxonomy of Chinese spiders; noun in genitive case.

Diagnosis.

This species is similar to that of M. mirabilis (Bösenberg & Strand, 1906) , but it can be easily distinguished by the following: (1) prolateral tegular apophysis ( PTA) is about triangular in ventral view (Fig. 3 B View Figure 3 ) vs crescent-shaped ( Zhu 1998: fig. 189 C); (2) posterior portion of the ventral tegular apophysis ( VTA) is almost triangular in ventral view (Fig. 3 B View Figure 3 ) vs hooked ( Zhu 1998: fig. 189 C); (3) embolic apophysis ( EA) is almost straight in ventral view (Fig. 3 B View Figure 3 ) vs obvious arc-shaped ( Zhu 1998: fig. 189 C); and (4) epigynal hood is distinct, posteriorly located (Fig. 4 A View Figure 4 ) vs invisible ( Zhu 1998: fig. 189 B).

Description.

Male ( holotype; Figs 3 View Figure 3 , 4 C View Figure 4 ). Total length 3.91. Carapace 1.46 long, 1.24 wide. Abdomen 2.57 long, 1.50 wide. Carapace ovoid, beige and edge grey, radial grooves indistinct. Clypeus projecting, 0.18 high. AER slightly recurved and PER straight. Eye sizes and inter-distances: AME 0.09, ALE 0.12, PME 0.10, PLE 0.13, AME – AME 0.18, AME – ALE 0.19, PME – PME 0.18, PME – PLE 0.22, ALE – PLE 0.13. Chelicerae pale yellow. Endite and sternum beige. Labium fulvous, base black grey. Legs pale yellow, without spots. Measurements of legs: I 10.97 (3.80, 3.43, 3.37, 0.37), II 6.96 (2.23, 2.33, 2.17, 0.23), III 3.77 (1.20, 1.17, 1.13, 0.27), IV 8.46 (2.80, 2.43, 2.83, 0.40). Abdomen rhomboid, dorsum grey, with ecru irregular spots, and pair of median sigilla running parallel to abdomen; venter creamy yellow.

Palp (Fig. 3 A – C View Figure 3 ): femur, patella and tibia yellow, femur c. 5.5 times longer than wide, patella and tibia about 2 times longer than wide; cymbium almost 2 times longer than wide; prolateral tegular apophysis ( PTA) sub-triangular in ventral view; ventral tegular apophysis ( VTA) flat, wider than embolus, base wide and terminal sharp in ventral view; conductor (C) membranous, fusiform in ventral view; embolus (E) slightly curved into wave-shape, originates from retrolateral side of bulb, with base, knife-shaped apophysis extends along embolus, and wider than embolus.

Female ( TRU -XZ-THR-0022 ; Fig. 4 A, B, D, E View Figure 4 ). Total length 4.36. Carapace 1.43 long, 1.19 wide. Abdomen 2.93 long, 2.05 wide. Clypeus 0.21 high. Eye sizes and inter-distances: AME 0.07, ALE 0.09, PME 0.08, PLE 0.09, AME – AME 0.18, AME – ALE 0.20, PME – PME 0.18, PME – PLE 0.23, ALE – PLE 0.12. Measurements of legs: I 9.48 (3.17, 2.87, 3.07, 0.37), II 6.19 (2.00, 2.03, 1.93, 0.23), III 3.49 (1.13, 1.13, 1.00, 0.23), IV 7.94 (2.57, 2.17, 2.77, 0.43). Habitus (Fig. 4 D, E View Figure 4 ) similar to that of male, except darker.

Epigyne (Fig. 4 A, B View Figure 4 ): almost 1.5 times longer than wide, posteriorly with hood (H) opened upward; atrium large, nearly heart-shaped, with pair of anterolateral arc-shaped ridges; copulatory openings ( CO) invisible, located anterolaterally on atrium; copulatory ducts ( CD) anteriorly extending at origin and then turn back and forming bowling ball-like portions; spermathecae (S) almost spherical, touched; fertilization ducts ( FD) posterior to spermathecae.

Distribution.

Known only from the type locality in Xizang, China (Fig. 8 View Figure 8 ).