Five new species of the genera Falcileptoneta and Longileptoneta (Araneae, Leptonetidae) from South Korea Author Lan, Tianqi Institute of Zoology, Chinese Academy of Sciences, Beijing 100101, China Author Zhao, Zhe Institute of Zoology, Chinese Academy of Sciences, Beijing 100101, China Author Kim, Seung Tae Life and Environment Research Institute, Konkuk University, Seoul 05029, South Korea stkim2000@hanmail.net Author Yoo, Jung Sun Biological and Genetic Resources Utilization Division, National Institute of Biological Resources, Incheon 22689, South Korea Author Lee, Sue Yeon College of Agricultural Life Science, Jeonbuk National University, Jeonju-si 54896, South Korea Author Li, Shuqiang https://orcid.org/0000-0002-3290-5416 Institute of Zoology, Chinese Academy of Sciences, Beijing 100101, China lisq@ioz.ac.cn text ZooKeys 2021 2021-01-13 1010 97 116 http://dx.doi.org/10.3897/zookeys.1010.59915 journal article http://dx.doi.org/10.3897/zookeys.1010.59915 1313-2970-1010-97 E70E8895CD5E4DEF9DA3E385065612B7 E93AE91D61B65DF286B6E5576C7DA167 Longileptoneta byeonsanbando sp. nov. Figures 7 , 8 , 9 , 12 Type material. Holotype . Male (NIBR), South Korea, Jeollabuk-do, Buan-gun, Sangseo-myeon, Cheongrim-ri, Byeonsanbando National Park ( 35.670146°N , 126.629253°E , elevation ca 135 m), 8 August 2019, ZG. Chen, Z. Zhao & YY. Hu leg. Paratypes . 1 male and 1 female (NIBR), same data as holotype. Diagnosis. Longileptoneta byeonsanbando sp. nov. is similar to L. gayaensis Seo, 2016 and L. jangseongensis Seo, 2016 but can be distinguished by the palpal tibia with one distal columnar apophysis, with apophysis tip armed with one long spine retrolaterally (Figs 7D , 8B ) (vs. tibia without apophysis in L. gayaensis ; tibia with one small apophysis armed with one spine in L. jangseongensis ); by the palpal bulb with narrow, leaf-like prolateral sclerite and ribbon-like median sclerite (Fig. 7B-D ) (vs. needle-like prolateral sclerite and shoehorn-like median sclerite in L. gayaensis ; without prolateral sclerite and leaf-like median sclerite in L. jangseongensis ); and can be further distinguished from L. gayaensis by the presence of two spurs at tarsal tip (Fig. 8A, B ) (vs. one spur in L. gayaensis ). Figure 7. Longileptoneta byeonsanbando sp. nov., holotype male A habitus, dorsal view B palpal bulb, ventral view C palpal bulb, prolateral view D palpal bulb, retrolateral view. Abbreviations: E embolus MS median sclerite PS prolateral sclerite. Scale bars: equal for C, D . Description. Male (holotype). Total length 2.39. Prosoma 0.98 long, 0.86 wide. Opisthosoma 1.41 long, 0.90 wide. Clypeus 0.13 high. Leg measurements: I 6.81 (1.79, 0.33, 1.99, 1.67, 1.03); II 5.51 (1.56, 0.32, 1.54, 1.26, 0.83); III 4.43 (1.29, 0.26, 1.15, 1.02, 0.71); IV 6.15 (1.67, 0.32, 1.78, 1.47, 0.91). Habitus as in Fig. 7A . Prosoma brown. Eyes six (Fig. 7A ). Median groove, cervical grooves and radial furrows distinct. Opisthosoma brown, ovoid. Palp (Figs 7C, D , 8A, B ): femur with many strong spines and very long (Fig. 8A, B ); patella very long (Fig. 8A, B ); tibia with one distal columnar apophysis, with apophysis tip armed with one long spine retrolaterally (Figs 7D , 8B ); tarsus with two spurs at tip and many spines, and with prolateral curvature (Fig. 8A, B ). Bulb with leaf-like embolus and three types of sclerites: prolateral sclerite narrow, leaf-like; median sclerite ribbon-like; retrolateral sclerite with serrated tip, transparent and tongue-like (Fig. 7B-D ). Figure 8. Longileptoneta byeonsanbando sp. nov., holotype male A palp, prolateral view B palp, retrolateral view. Scale bars: equal for A, B . Female (one of the paratypes). Similar to male in color and general features, habitus as in Fig. 9A, B . Total length 2.02. Prosoma 0.78 long, 0.68 wide. Opisthosoma 1.24 long, 0.86 wide. Clypeus 0.12 high. Leg measurements: I 5.23 (1.41, 0.31, 1.47, 1.14, 0.90); II 4.13 (1.16, 0.21, 1.15, 0.90, 0.71); III 3.33 (0.96, 0.19, 0.83, 0.77, 0.58); IV 4.61 (1.28, 0.32, 1.27, 1.03, 0.71). Internal genitalia (Fig. 9C ): atrium trapezoidal, spermathecae and genital duct slender, tube-shaped, loosely coiled. Figure 9. Longileptoneta byeonsanbando 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 . 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 ).