Falcileptoneta naejangsan sp. nov. Figures 3, 4, 12

Type material.

Holotype. Male (NIBR), South Korea, Jeollabuk-do, Jeongeup-si, Naejang-dong, Mt. Naejangsan National Park (35.491727°N, 126.900469°E, elevation ca 237 m), 9 August 2019, ZG. Chen, Z. Zhao & YY. Hu leg. Paratype. 1 female (NIBR), same data as holotype.

Diagnosis.

Falcileptoneta naejangsan sp. nov. is similar to F. naejangensis Seo, 2015 and F. sunchangensis Seo, 2016 but can be distinguished by the shape of the two palpal tibial retrolaterodistal apophyses, with the dorsal apophysis beak-like and the ventral apophysis spine-like (Fig. 3D) (vs. dorsal one curved and ventral one triangular, and with one spine in F. naejangensis; dorsal apophysis thick and spur-like, and ventral apophysis spine-like in F. sunchangensis); and by the male palpal bulb with a spine-like prolateral sclerite and narrow leaf-like median sclerite (Fig. 3B-D) (vs. needle-shaped prolateral sclerite and longish, shoehorn-like median sclerite in F. naejangensis; narrow, leaf-like prolateral sclerite and leaf-like median sclerite in F. sunchangensis).

Description.

Male (holotype). Total length 1.68. Prosoma 0.69 long, 0.58 wide. Opisthosoma 0.99 long, 0.58 wide. Clypeus 0.10 high. Leg measurements: I 4.43 (1.15, 0.32, 1.22, 1.03, 0.71); II 3.41 (0.90, 0.26, 0.90, 0.77, 0.58); III 2.76 (0.83, 0.26, 0.65, 0.64, 0.38); IV 3.97 (1.15, 0.26, 1.15, 0.83, 0.58). Habitus as in Fig. 3A. Prosoma dark brown. Eyes six (Fig. 3A). Median groove, cervical grooves and radial furrows distinct. Opisthosoma dark brown, ovoid. Palp (Fig. 3C, D): femur lacking strong spine; tibia with two retrolaterodistal apophyses, dorsal apophysis beak-like and ventral apophysis spine-like (Fig. 3D); tarsus with transverse depression (Fig. 3D). Bulb with embolus bearing sickle-like tip and three types of sclerites: prolateral sclerite spine-like; median sclerite narrow, leaf-like; retrolateral sclerite transparent and membranous (Fig. 3B-D).

Female (paratype). Similar to male in color and general features, habitus as in Fig. 4A, B. Total length 1.80. Prosoma 0.68 long, 0.61 wide. Opisthosoma 1.12 long, 0.63 wide. Clypeus 0.11 high. Leg measurements: I 4.16 (1.15, 0.38, 1.15, 0.90, 0.58); II 3.15 (0.90, 0.26, 0.83, 0.71, 0.45); III 2.68 (0.77, 0.19, 0.64, 0.63, 0.45); IV 3.78 (1.15, 0.26, 1.09, 0.77, 0.51). Internal genitalia (Fig. 4C) with atrium rectangular, genital duct coiled apically, and spermathecae round.

Etymology.

The specific name refers to the type locality and is a noun in apposition.

Habitat.

Litter layers in mixed forest.

Distribution.

South Korea (Jeollabuk-do; Fig. 12).