Cybaeus jogyensis, Seo, 2016

Seo, Bo Keun, 2016, Seven new species of the genus Cybaeus (Araneae, Cybaeidae) from Korea, Journal of Species Research 5 (3), pp. 571-583 : 576

Cybaeus jogyensis n. sp.

Ī계ƌặHŔ (ṳAE) ( Figs. 2 F­J, 5G­H, 6J­L, 7J­L)

Material examined. Holotype: ♂, mixed forest (34°58′ 33″N, 127°19′27″E, alt. 420 m), 2 km south of the summit of Mt. Jogye, Nakan­myeon, Suncheon­si , Jeollanam­do, 29 June 2010, J. C. Lim . Paratype: 2♂♂, 2$$, same data as holotype ; 16♂♂, mixed forest (35°01′44″N, 127°20′13″E, alt. 221 m), 4 km northeast of the summit of Mt. Jogye, Seungju­eup, Suncheon­si , Jeollanam­do, other data same as holotype .

Etymology. The specific name comes from the type lo­ cality, Mt. Jogye.

Diagnosis. The new species is similar to C. geumensis n. sp. in the abdominal pattern, the embolus length of male palp, the interval between the embolic base and the conductor of male palp, the round apophysis of male palpal patella, and the size and shape of the vesicles of female spermatheca, but can be distinguished from the latter by the body length, the teeth number of on the apophysis of male palpal patella, the epigyne, and the curved copulatory duct connected with the anterior vesicle of female spermatheca ( Figs. 2 F­J, 5G, H, 7J­L).

Description. Male (holotype). Total length 6.30. Habitus as in Fig. 5H . Carapace reddish brown, 3.91 long, 2.84 wide; radial grooves and linear fovea distinct. Clypeus height 2.7 times of diameter of ALE. AER 0.82, PER 0.98; AER and PER retrocurved slightly in dorsal view. AME 0.13, ALE 0.20, PME 0.18, PLE 0.21, AME­AME 0.08, AME­ALE 0.07, PME­PME 0.18, PME­PLE 0.12, AME­PME 0.18, and ALE­PLE 0.04. Median ocular quadrangle, posterior side = height>anterior side (39: 35: 24). Chelicera with three promarginal and eight minute retromarginal teeth. Sternum 1.76 long, 1.70 wide. Labium 0.63 long, 0.63 wide. Leg measurements: I 11.72(3.02, 1.26, 2.84, 2.84, 1.76), II 10.72 (2.84, 1.20, 2.52, 2.52, 1.64), III 8.57 (2.27, 1.07, 1.70, 2.21, 1.32), IV 11.04 (2.84, 1.07, 2.46, 3.09, 1.58). Palp 3.78 (1.32, 0.63, 0.44, 1.39). Leg I/c 3.00. Fem. I/c 0.77. Tib. I/c 0.73. Met. I/c 0.73. Pat. I + tib. I/c 1.05. Met. I/tar. I 1.61. Met. IV/tar. IV 1.96. Leg spination pattern: Femora; I d1­1­1, p0­0­1­1; II d1­1­1, p0­0­1; III d1­1­1, p0­1­1, r0­1­1; IV d1­1­1, p0­1­1, r0­0­1. Tibiae; I d1­1, p1­0, v2­2­2­1­2; II d1­1, p1­1­1, v2­2­1­2; III d1­1, p1­1­1, r1­1, v2­2­2; IV d1­1, p1­1­1, r0­1­1, v2­1­2. Metatarsi; I p1­1­1­1, r1­1­1­1; II p1­1­1­2, r0­0­1, v2­2­1; III p1­1­2, r1­1­1­2, v2­2­1; IV p1­1­1­2, r1­1­2, v2­2­1. Abdomen oval and dark, with a pair of pale dots and five chevrons longitudinally, and 2.84 long, 2.02 wide. Palp ( Figs. 2 F­H, 6J­L): tibia shorter than patella; patella apophysis round with 31 conical teeth; embolus long and slender; interval between embolic base and conductor wide.

Female (paratype). Total length 5.04. Habitus as in Fig. 5G . Carapace yellowish brown, 3.09 long, 2.14 wide. Clypeus height 2.4 times of diameter of ALE. AER 0.68, PER 0.86. AME 0.10, ALE 0.18, PME 0.14, PLE 0.16, AME­AME 0.05, AME­ALE 0.05, PME­PME 0.16, PME­PLE 0.13, AME­PME 0.16, and ALE­PLE 0.07. Median ocular quadrangle, posterior side>height> anterior side (33: 28: 19). Chelicera with three promarginal and nine minute retromarginal teeth. Sternum 1.45 long, 1.32 wide. Labium 0.44 long, 0.50 wide. Leg measurements: I 8.52 (2.46, 1.01, 2.02, 1.83, 1.20), II 7.81 (2.27, 0.95, 1.76, 1.70, 1.13), III 6.74 (1.95, 0.88, 1.32, 1.58, 1.01), IV 8.82 (2.39, 0.95, 1.95, 2.27, 1.26). Palp 3.65 (1.20, 0.50, 0.69, 1.26). Leg I/c 2.76. Fem. I/c 0.80. Tib. I/c 0.65. Met. I/c 0.59. Pat. I + tib. I/c 0.98. Met. I/ tar. I 1.53. Met. IV/tar. IV 1.80. Leg spination pattern: Femora; I, II d1­1­1, p0­0­1; III d1­1­1, p0­0­1, r0­1­1; IV d1­1­1, r0­0­1. Tibiae; I d1­1, p1­1, v2­2­2­2; II d1­1, p1­1­1, v2­2­1­2; III d1­1, p1­1­1, r1­1, v1­2­2; IV d0­1, p1­1­1, r0­1­1, v1­1­2. Metatarsi; I p1­1, r1­1, v2­2­0; II p1­1­1, r0­1­1, v2­2­2; III d1­2­2, p1­1­1, r1­1, v2­2­1; IV d1­2­2, p1­1­1, r0­1, v2­2­1. Abdomen 2.33 long, 1.76 wide. Epigynum: atrium wide, with a pair of copulatory openings. Internal genitalia: spermatheca with an anteri­ or small pear­shaped vesicle and a posterior gourd­like vesicle; curved copulatory duct connected with anterior vesicle dorsally; fertilization duct short ( Figs. 2I, J, 7 JL).

Habitat. Mixed forest.

World Distribution. Korea (Jeollanam­do).

Figures

Fig. 5. Carapaces and abdomens: A ­ Cybaeus geumensis, female; B ­ C. geumensis, male; C ­ C. ilweolensis, female; D ­ C. ilweolensis, male; E ­ C. jiriensis, female; F ­C. jiriensis, male; G ­ C. jogyensis, female; H ­ C. jogyensis, male; I­ C. odaensis, female; J ­C. odaensis, male; K ­C. seorakensis, male; L­ C. songniensis, female; M ­C. songniensis, male. Scale lines: 1.0 mm.

Fig. 7. Female genital organs (1st column ­ epigynum, 2nd ­ internal genitalia, ventral view, and 3rd ­ internal genitalia, dorsal view): Cybaeus geumensis (A­C); C. ilweolensis (D­F); C. jiriensis (G­I); C. jogyensis (J­L); C. odaensis (M­O); C. songniensis (P­R). Scale lines: 0.1mm.