Longileptoneta jirisan, Lan & Zhao & Kim & Yoo & Lee & Li, 2021

Lan, Tianqi, Zhao, Zhe, Kim, Seung Tae, Yoo, Jung Sun, Lee, Sue Yeon & Li, Shuqiang, 2021, Five new species of the genera Falcileptoneta and Longileptoneta (Araneae, Leptonetidae) from South Korea, ZooKeys 1010, pp. 97-116 : 97

Longileptoneta jirisan sp. nov. Figures 10 , 11 , 12

Type material.

Holotype. Male (NIBR), South Korea, Gyeongsangnam-do, Hadong-gun, Hwagye-myeon, Daeseong-ri, Mt. Jirisan National Park (35.273974°N, 127.657439°E, elevation ca 357 m), 15 August 2019, ZG. Chen, Z. Zhao & YY. Hu leg. Paratype. 1 female (NIBR), same data as holotype.

Diagnosis.

Longileptoneta jirisan sp. nov. is similar to L. gachangensis Seo, 2016 and L. weolakensis Seo, 2016 but can be distinguished by the palpal tibia with one retrolaterodistal spur (Fig. 10D ) (vs. tibia without apophysis in L. gachangensis and L. weolakensis ); and by the palpal bulb with spur-like prolateral sclerite and tongue-like retrolateral sclerite (Fig. 10C, D ) (vs. blade-like prolateral sclerite and skinny and triangular retrolateral sclerite in L. gachangensis ; without prolateral sclerite and triangular retrolateral sclerite in L. weolakensis ).

Description.

Male (holotype). Total length 1.85. Prosoma 0.78 long, 0.72 wide. Opisthosoma 1.07 long, 0.76 wide. Clypeus 0.10 high. Leg measurements: I 5.52 (1.60, 0.27, 1.67, 1.35, 0.63); II 4.50 (1.35, 0.25, 1.28, 1.03, 0.59); III 3.68 (1.04, 0.19, 0.96, 0.91, 0.58); IV 5.04 (1.47, 0.26, 1.53, 1.16, 0.62). Habitus as in Fig. 10A . Prosoma brownish. Eyes six (Fig. 10A ). Median groove, cervical grooves and radial furrows distinct. Opisthosoma yellowish, ovoid. Palp (Fig. 10C, D ): femur with many strong spines (Fig. 10C, D ); tibia with one retrolaterodistal spur (Fig. 10D ); tarsus with two spurs at tip and many spines, and with prolateral curvature (Fig. 10C, D ). Bulb with leaf-like embolus and three types of sclerites: prolateral sclerite spur-like; median sclerite leaf-like; retrolateral sclerite with serrated tip, transparent and tongue-like (Fig. 10B-D ).

Female (paratype). Similar to male in color and general features, habitus as in Fig. 11A, B . Total length 1.76. Prosoma 0.74 long, 0.62 wide. Opisthosoma 1.02 long, 0.68 wide. Clypeus 0.10 high. Leg measurements: I 4.43 (1.28, 0.26, 1.34, 0.97, 0.58); II 3.44 (0.96, 0.22, 0.94, 0.76, 0.56); III 2.92 (0.83, 0.19, 0.74, 0.66, 0.50); IV 4.10 (1.17, 0.24, 1.16, 0.97, 0.56). Internal genitalia (Fig. 11C ) with atrium trapezoidal, spermatheca and genital duct tube-shaped, loosely coiled.

Etymology.

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

Habitat.

Litter layers in mixed forest.

Distribution.

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

Figures

Figure 10. Longileptoneta jirisan sp. nov., holotype male A habitus, dorsal view B palpal bulb, ventral view C palp, prolateral view D palp, retrolateral view. Abbreviations: E embolus MS median sclerite PS prolateral sclerite. Scale bars: equal for C, D.

Figure 11. Longileptoneta jirisan sp. nov., female paratype A habitus, dorsal view B habitus, ventral view C internal genitalia, dorsal view. Abbreviations: At atrium SH spermathecae SS spermathecae stalk. Scale bars: equal for A, B.

Figure 12. Known distribution records of new leptonetid species from Korea 1 Falcileptoneta dolsan sp. nov. 2 Falcileptoneta naejangsan sp. nov. 3 Longileptoneta buyongsan sp. nov. 4 Longileptoneta byeonsanbando sp. nov. 5 Longileptoneta jirisan sp. nov.