Otacilia rulinensis, Yao & Irfan & Peng, 2019

Yao, Na, Irfan, Muhammad & Peng, Xianjin, 2019, Five new species of Otacilia Thorell, 1897 (Araneae: Phrurolithidae) from the Wuling Mountain Range, China, Zootaxa 4613 (2), pp. 290-304 : 298-300

Otacilia rulinensis sp. nov.

Figs 7 , 8

Type material. Holotype: ♂, CHINA: Hunan Province: Shaoyang City, Chengbu County, Rulin Town , Daqiao Village , 26°20′26.79″N, 110°16′40.45″E, 527 m a.s.l., 8 November 2017, leg. Guchun Zhou. Paratype: 1♀, same data as holotype .

Etymology. The specific epithet refers to the type locality.

Diagnosis. The new species belongs to the ‘ armatissima ’ group, and resembles O. komurai ( Yaginuma, 1952) , but can be distinguished by the following characters: dorsal tibial apophysis leaf-like with pointed end in O. rulinensis sp. nov. in retrolateral view ( Figs 7G , 8C ), whereas sword-shaped with a blunt end in O. komurai (see Wang et al. 2012: fig. 3F). Embolus hook-shaped in O. rulinensis sp. nov. in ventral view ( Figs 7F , 8B ), whereas S-shaped in O. komurai (see Wang et al. 2012: fig. 3G). Conductor suborbicular in O. rulinensis sp. nov. in ventral view ( Figs 7G , 8C ), whereas ampullaceous in O. komurai (see Wang et al. 2012: fig. 3F, G). Bursa oval in O. rulinensis sp. nov. ( Figs 7D , 8E ), whereas kidney-shaped in O. komurai (see Wang et al. 2012: fig. 3I). Copulatory opening present ventro-mesally and close to each other in O. rulinensis sp. nov. ( Figs 7C , 8D ), whereas present ventro-laterally and separated by one-third width of epigynal plate in O. komurai (see Wang et al. 2012: fig. 3H).

Description. Male (Holotype): Total length 3.39 (n = 1). Carapace 1.64 long, 1.39 wide, yellowish brown, abruptly narrowed anteriorly; fovea, cervical and radial grooves distinct. Chelicerae with 2 promarginal and 6 retromarginal teeth. Eye sizes and interdistances: AME 0.09; ALE 0.08; PME 0.09; PLE 0.10; AME–AME 0.05; AME–ALE 0.02, PME–PME 0.12, PME–PLE 0.05, ALE–PLE 0.10, AME–PME 0.09. MOA 0.29 long, front 0.21 wide, back 0.28 wide. Clypeus 0.10 high. Labium and endites brown. Legs light yellow. Measurements of legs: leg I 6.17 (1.58, 0.40, 2.04, 1.54, 0.61), II 5.07 (1.40, 0.35, 1.39, 1.27, 0.66), III 3.50 (0.97, 0.34, 1.02, 0.62, 0.55), IV 6.64 (1.67, 0.52, 1.71, 1.80, 0.94). Leg formula: IV-I-II-III. Femora I with four pl spines; femora I-IV with one do spine; femora II with two pl spines; tibia I with seven pv spines and eight rv spines, tibia II with seven pairs of ve spines; metatarsus I with four pairs of ve spines, metatarsus II with four pv spines and three rv spines. Abdomen oval and grey, 1.56 long, 1.09 wide, posterior half with five chevrons; ventral side grey. Palp ( Figs 7F, G , 8 A–C). Femur ventrally with an apophysis. Dorsal tibial apophysis leaf-like with pointed end. Cymbium foliated dorsally, ventrally with several setae around embolus tip. Tegular apophysis longer than wide with blunt end. Conductor wider than long, transparent, originating from the base of the embolus. Sperm duct thick, strongly sclerotized. Embolus hookshaped, extending upward to the lateral margin of cymbium.

Female (paratype): Total length 3.94 (n= 1). Carapace 1.68 long, 1.38 wide. Eye sizes and interdistances: AME 0.09, ALE 0.09, PME 0.08, PLE 0.09; AME–AME 0.06, AME–ALE 0.02, PME–PME 0.15, PME–PLE 0.06, ALE–PLE 0.11; AME–PME 0.09. MOA 0.26 long, front 0.24 wide, back 0.31 wide. Clypeus 0.11 high. Legs light yellow. Measurements of legs: leg I 5.32 (1.13, 0.42, 1.82, 1.36, 0.59), II 4.91 (1.29, 0.35, 1.42, 1.08, 0.77), III 4.04 (1.01, 0.31, 1.16, 0.92, 0.64), IV 6.53 (1.59, 0.51, 1.63, 1.87, 0.93). Leg formula: IV-I-II-III. Femora I with four pl spines; femora II with two pl spines; tibia I with seven pv spines and eight rv spines, tibia II with seven pairs of ve spines; metatarsus I with four pairs of ve spines, metatarsus II with four pv spines and three rv spines. Abdomen wide and grey, 1.85 long, 1.08 wide. Other morphological characters same as in male. Epigyne ( Figs 7C, D , 8D, E ). Copulatory opening close to each other. Copulatory duct relatively short. Median plate with darker margin, more than two times longer than wide, narrow posteriorly. Bursae oval, transparent. Spermatheca elliptical. Fertilization duct short.

Distribution. Known only from the type locality ( Fig. 11 ).

Figures

FIGURE 7. Otacilia rulinensis sp. nov., holotype male (A, E–G) and paratype female (B–D). A–B habitus, dorsal view C epigyne, ventral view D vulva, dorsal view E male left palp, prolateral view F same, ventral view G same, retrolateral view. Scale bars: 0.5 mm (A–B), 0.2 mm (C–G).

FIGURE 8. Otacilia rulinensis sp. nov., holotype male (A–C) and paratype female (D–E). A male left palp, prolateral view B same, ventral view C same, retrolateral view D epigyne, ventral view E vulva, dorsal view. Scale bars: 0.2 mm (A–E).

FIGURE 11. Distribution records of new species of the genus Otacilia Thorell, 1897 from Wuling Mountain Range, China.