Cybaeus auriculatus, Lee & Yoo & Kim, 2017

Lee, Sue Yeon, Yoo, Jung Sun & Kim, Seung Tae, 2017, Three new species and four new records of the families Cybaeidae and Gnaphosidae (Araneae) from Korea, Journal of Species Research 6, pp. 114-124 : 114-116

Cybaeus auriculatus n. sp.

HƎffiĄḍ (ljḓ) ( Fig. 1 A-H)

Material examined. Holotype: ♂, mixed forest (35°21 ʹ

37 ʺ N, 127°48 ʹ 00 ʺ E, alt. 415 m), 6.8 km east northeast of the summit of Mt. Jiri, Samjang-myeon, Sancheong-gun , Gyeongsangnam-do, 30 September 2009, S. Y. Kim. Paratype: 1♂, same data as holotype .

Etymology. The specific name is a Latin adjective meaning “eared” and refers to the shape of the conductor in the male palp.

Diagnosis. The male of C. auriculatus n. sp. is similar to that of C. monticola Kobayashi, 2006 in the bulb of male palp, but distinguished from the latter by the conductor of palp and the patellar apophysis ( Fig. 1 B-H).

Description. Male (holotype). Total length 3.15. Habitus as in Figure 1A. Carapace reddish yellow; 1.85 long, 1.45 wide; cervical groove, median furrow and radial grooves distinct; clypeus height 5.5 times of diameter of AME. AER 0.34, PER 0.47; AER and PER slightly recurved in dorsal view. AME 0.03, ALE 0.12, PME 0.09, PLE 0.10, AME-AME 0.04, AME-ALE 0.01, PME-PME 0.08, PME-PLE 0.05, AME-PME 0.09, and ALE-PLE 0.03. Median ocular quadrangle, posterior side>height>anterior side (20:18:9). Chelicera with three promarginal and ten minute retromarginal teeth. Sternum 1.00 long, 0.96 wide. Labium 0.27 long, 0.29 wide. Leg measurements: I 6.20 (1.65, 0.65, 1.55, 1.35, 1.00), II 5.75 (1.55, 0.65, 1.35, 1.30, 0.90), III 4.75 (1.35, 0.55, 1.00, 1.15, 0.70), IV 6.20 (1.65, 0.60, 1.50, 1.55, 0.90). Leg I/c 3.35. Fem. I/c 0.89. Tib I/c 0.84. Met I/c 0.73. Pat. I + tib. I/c 1.24. Met. I/tar. I 1.35. Met. IV/tar. IV 1.72. Leg spination pattern: Femora; I d1-1, p0-0-0-1-1; II d1-1, p0-0- 0-1; III, IV d1-1-1, p0-0-0-1, r0-0-0-1. Tibiae; I p0-0-1, v2-2; II p1-1, v2-2; III, IV p0-1-1, r0-1-1, v2-2-2. Metatarsi; I v2-2-2; II p2-1, v2-2-2; III d0-1-1, p1-1-1, r1-1- 2, v2-2-1; IV d2-1-1-2, p0-1-1, r0-1-1-1, v2-2-1. Abdomen oval, yellow, mottled with gray dots, and 1.50 long, 1.15 wide. Palp ( Fig. 1 B-H): tibia longer than patella, retrolaterally with a narrow chitinized membrane forming a long spine at anterior end; patella apophysis with small four conical teeth, finger-like; embolus long and slender; conductor auricle-like, divided into two parts.

Habitat. Mixed forest.

World Distribution. Korea (Gyeongsangnam-do).