Qiongocera hongjunensis Li & Li, 2017

Liu, Chang, Li, Fengyuan, Li, Shuqiang & Zheng, Guo, 2017, Five new genera of the subfamily Psilodercinae (Araneae: Ochyroceratidae) from Southeast Asia, Zoological Systematics 42 (4), pp. 395-417 : 403

Qiongocera hongjunensis Li & Li , sp. nov. ( Figs 5–6 , 15 )

Material examined. Holotype male, China, Hainan Province, Wanning City, Liulian Mountain , Hongjun Cave (18º57.925’N, 110º25.316’E; elev. 290 m), 03 July 2014, leg. F. Li & X. Wang. Paratype. 1 female, same data as holotype ( IZCAS) .

Etymology. The species name is an adjective refering to the type locality.

Diagnosis. This species is easily recognized by the complex conductor and short embolus of the male palp and the single pair of enormous spermathecae in the female.

Description. Male (holotype). Total length 2.08; carapace 0.71 long, 0.80 wide; abdomen 1.19 long, 0.56 wide. Carapace round, yellow, with three longitudinal brown bands of which middle band twice as wide as laterals ( Fig. 6C ). Fovea shallow, dark brown. Anterior margin of thoracic region distinctly elevated. Chelicerae yellow. Cheliceral promargin with lamina and no teeth, retromargin with one small tooth, posterior surface of fang with 19 small denticles. Clypeus slanting, brown, with two pale rounded areas basally. Labium slanting, brown. Sternum brown. Abdomen elongate with complex patterns dorsally and ventrally. Legs brown; measurements: I missing, II missing, III 7.02 (2.10, 0.27, 2.10, 1.86, 0.69), IV 10.07 (3.13, 0.27, 3.28, 2.97, 1.05). Palp ( Figs 5 A–D): femur slender, patella angled ventrally, tibia strongly deflected prolaterally, cymbium with single protrusion; bulb yellow, pyriform, ending with a laminal, acuminate apophysis ( Fig. 5B ); conductor flat and short, arising distally on bulb, divided into two unequal parts; embolus dark, short, arising distally from bulb adjacent to base of conductor.

Female. Similar to male in coloration and general features but slightly smaller ( Figs 6 D–E). Measurements: total length 1.84; carapace 0.6 long, 0.75 wide; abdomen 1.26 long, 0.76 wide. Leg measurements: I 8.82 (2.50, 0.28, 2.62, 2.42, 1.00), II 6.29 (1.74, 0.28, 1.90, 1.74, 0.63), III 5.33 (1.55, 0.27, 1.47, 1.41, 0.63), IV 8.02 (2.25, 0.27, 2.28, 2.23, 0.99). Vulva with one pair of enormous spermathecae ( Fig. 6A ).

Distribution. Known only from the type locality ( Fig. 15 ).

Figures

Figure 5. Qiongocera hongjunensis Li & Li, sp. nov., male holotype. A. Palp, ventral view. B. Palpal bulb, prolateral view. C. Palp, prolateral view. D. Palp, retrolateral view. Scale bars: B–D=0.1mm.

Figure 6. Qiongocera hongjunensis Li & Li, sp. nov., male holotype and female paratype. A. Spermathecae, dorsal view. B. Female epigyne, ventral view. C. Male habitus, dorsal view. D. Female habitus, dorsal view. E. Female habitus, ventral view. Scale bars: A = 0.1mm; C–E=0.5mm.

Figure 15. Known distribution of six new ochyroceratids from Southeast Asia. 1. Sinoderces nawanenis Li & Li, sp.nov. 2. Qiongocera hongjunensis Li & Li, sp. nov. 3. Relictocera qiyi Li & Li, sp. nov. 4. Luzonacera duan Li & Li, sp. nov. 5. Luzonacera chang Li & Li, sp. nov. 6. Thaiderces jian Li & Li, sp. nov.