Hahnia dabashan Cai, Wang & Zhang, 2025

Hahnia dabashan Cai, Wang & Zhang sp. nov.

Figs 1 A – C View Figure 1 , 2 A – D View Figure 2

Type material.

Holotype • ♂ ( SWUC-T-HA-16-01 ), China, Chongqing Munic., Chengkou Co., Daba MNNR, Longtian Town, Wuli Vill. , 32°04.269'N, 108°39.914'E, elev. 1286 m, 16. 03. 2018, Z. S. Zhang et al. leg GoogleMaps . Paratypes • 4 ♂ ( SWUC-T-HA-16-02 ~ 05), same data as for the holotype GoogleMaps .

Etymology.

The specific name is derived from the type locality (Dabashan = Daba Mountain); noun in apposition.

Diagnosis.

The male palp of the new species is similar to that of H. corticicola Bösenberg & Strand, 1906 ( Liu et al. 2015: 297, fig. 3 A – I) in the general shape of the cymbium, embolus, tegulum, and retrolateral tibial apophysis (RTA). It can be distinguished by the following combination of characters: a thorn-like process (TF) on the proximal femur (vs. absent); a flake-like patellar apophysis with a serrated margin (vs. rod-shaped with a hooked tip); and indistinct teeth on the distal retrolateral tibial apophysis (vs. distinct teeth) (Figs 1 A – C View Figure 1 , 2 B – D View Figure 2 ).

Description.

Male holotype (Fig. 2 A View Figure 2 ) total length 1.55. Prosoma 0.78 long, 0.62 wide; opisthosoma 0.84 long, 0.61 wide. Carapace yellowish brown, with few black setae. Eye sizes and interdistances: AME 0.02, ALE 0.05, PME 0.05, PLE 0.0. 05; AME – AME 0.02, AME – ALE 0.02, PME – PME 0.05, PME – PLE 0.02, ALE – PLE 0.01. MOA 0.13 long, front width 0.06, back width 0.13. Clypeus height 0.08. Chelicerae yellowish brown, with 2 promarginal and 4 retromarginal teeth. Endites yellowish brown. Labium yellowish brown, wider than long. Leg measurements: I 1.63 (0.50, 0.56, 0.31, 0.26); II 1.55 (0.47, 0.50, 0.31, 0.27); III 1.35 (0.37, 0.45, 0.27, 0.26); IV 1.83 (0.50, 0.64, 0.38, 0.31). Opisthosoma oval, dorsum yellowish brown, dorsally with 3 light chevrons, venter yellowish brown.

Palp (Figs 1 A – C View Figure 1 , 2 B – D View Figure 2 ). Femur proximal end with thorn-like outgrowth; patellar apophysis (PA) flake-like, 3 times longer than wide in retrolateral view; distal part of retrolateral tibial apophysis (RTA) extending dorsally then proximally; cymbium c. 1.7 times longer than wide, with deep, long (as long as cymbium) and semi-transparent retrolateral furrow; embolus originating mid-retrolaterally (c. 3 o’clock position), clockwise curved along cymbial margin, then inside cymbial furrow in the left male palp; tip of embolus embedded in a transparent pocket. Median apophysis (MA) located near base of embolus.

Female unknown.

Variation.

Males ( N = 5) total length 1.55–1.75.

Distribution.

Known only from the type locality in Chongqing, China.