Zoica thailandica Lu, Zhang & Wang sp. nov.

Figs 1 C, D, 6, 7, 10 泰佐卡蛛

Type material.

Holotype • ♂ (SWUC -T-LY-30-01), Thailand, Ratchaburi, Suan Pheung Dist., Botanical Garden, 1 3°31'31"N, 99°14'30"E, elev. 188 m, 21 November 2018, Lu-Yu Wang, Tian Lu and Zheng Fan leg. (SWUC) . Paratypes: • 11 ♂ 12 ♀ (SWUC -T-LY-30-02 to 24) with same data as for holotype (SWUC) • 3 ♂ 13 ♀ (SWUC -T-LY-30-25 to 40), Uthai Thani, Ban Rai, Huai Kha Khaeng Wildlife Sanctuary, 15°17'4"N, 99°28'43"E, elev. 230 m, 25 November 2018, Lu-Yu Wang, Yan-Nan Mu and Tian Lu leg.

Etymology.

The species is named after the country where the type locality is situated. Adjective.

Diagnosis.

The new species resembles Z. carolinensis Framenau, Berry & Beatty, 2009 (Framenau et al. 2009: 228, figs 5–8) in having hook-shaped lateral apophysis and a posterior lip of the epigyne (Figs 6, 7 C – I), but can be differentiated from the latter by the long lateral apophysis, almost half length of the bulb (Figs 6 A, B, 7 C – G; vs short), the posterior lip of the epigyne divided distinctly (Figs 6 C, D, 7 H, I; vs fused).

Description.

Male holotype (Fig. 7 A) total length 2.26. Carapace 1.16 long, 0.87 wide; opisthosoma 1.17 long, 0.73 wide. Carapace smooth, yellow brown. Fovea longitudinal, radial furrow indistinct. Eye region black. Eye sizes and interdistances: AME 0.04, ALE 0.05, PME 0.11, PLE 0.07; AME – AME 0.02, AME – ALE 0.02, PME – PME 0.03, PME – PLE 0.04. Clypeus height 0.04. Chelicerae yellow brown, with three promarginal teeth and two retromarginal teeth. Labium yellowish brown, longer than wide. Endites yellowish brown, longer than wide. Sternum yellowish brown, with yellow brown setae. Legs yellow brown. Leg measurements: I 2.97 (0.86, 0.98, 0.64, 0.49); II 2.67 (0.79, 0.85, 0.57, 0.46); III 2.17 (0.64, 0.61, 0.52, 0.40); IV 3.56 (0.96, 1.14, 0.90, 0.56). Leg formula: 4123. Opisthosoma oval, with dorsal scutum. Dorsum yellow brown. Venter yellowish brown.

Palp (Figs 6 A, B, 7 C – G). Subtegulum located on lateral side of the bulb. Lateral apophysis robust, F-shaped, with hook-shaped tip and medial process. Embolus slender, in groove of terminal apophysis (basally swollen, apically pointed). Conductor short, base broad, apex tapering, membranous. Median tegular lobe finger-shaped, membranous.

Female paratype (SWUC -T-LY-30-02, Fig. 7 B) total length 2.18. Carapace 1.13 long, 0.87 wide; opisthosoma 1.10 long, 0.83 wide. Eye sizes and interdistances: AME 0.03, ALE 0.04, PME 0.10, PLE 0.07; AME – AME 0.01, AME – ALE 0.02, PME – PME 0.04, PME – PLE 0.04. Clypeus height 0.04. Legs yellow brown. Leg measurements: I 2.72 (0.79, 0.95, 0.55, 0.43); II 2.38 (0.74, 0.74, 0.49, 0.41); III 2.16 (0.64, 0.61, 0.52, 0.39); IV 3.35 (0.93, 1.14, 0.77, 0.51). Leg formula: 4123. Opisthosoma yellow brown dorsally. Ventral yellow brown.

Epigyne (Figs 6 C, D, 7 H, I). Copulatory openings located posteriorly, inconspicuous. Heads of spermathecae spherical. Stalks of spermathecae robust, pear-shaped. Fertilization duct crescent-shaped. The posterior lip of the epigyne divided distinctly.

Variation.

Males (N = 15) total length 2.15–2.43, females (N = 25) total length 2.16–2.73.

Habitat.

Living on the sandy ground by the stream.

Distribution.

Thailand (Ratchaburi and Uthai Thani) (Fig. 10).