Tapinocyba centralis Irfan, Yun, Lu-Yu & Zhi-Sheng, 2024, sp. nov.
Creators: name: Irfan, Muhammad
name: Yun, Dai
name: Lu-Yu, Wang
name: Zhi-Sheng, Zhang
Publisher: name: Zenodo
Year: 2024
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Arachnida
Araneae
Linyphiidae
Tapinocyba
Tapinocyba centralis

description: Tapinocyba centralis sp. nov.
Figs 1, 2, 12 (中盾大蛛)
Type material.
Holotype: China • ♂; Chongqing Municipality, Jiangjin District, Zhuyang Town, Yunwuping, Guanyin Valley; 29°9′1.38″N, 105°57′28.18″E, 558 m a. s. l., 2023. I. 7, Wang L. Y. et al. leg.; SWUC -T-LIN-26-01. Paratypes: 3 ♂; same location data as holotype; SWUC -T-LIN-26-02 to SWUC -T-LIN-26-04 • 2 ♂; same location data as holotype; SWUC -T-LIN-26-02 & SWUC -T-LIN-26-03 • 1 ♂; Zhuyang Town, Yunwuping, Dashibao; 29°9′6.99″N, 105°57′34.51″E; 542 m a. s. l.; 2023. I. 7; Wang L. Y. et al. leg.; SWUC -T-LIN-26-04.
Etymology.
The specific epithet is derived from the Latin adjective centralis, meaning “ median ” and referring to the dorsal tibial apophysis, which is located dorsally in almost median of the tibia in dorsal view of the male palp.
Diagnosis.
The male of Tapinocyba centralis sp. nov. resembles T. praecox (O. Pickard-Cambridge, 1873) in having the similar cephalic lobe and embolic division (Figs 1 A – D, 2 A – C; Hormiga 2000: fig. 27 A – E, pl. 62 A – F) and can be distinguished by the dorsal tibial apophysis located almost in median of tibia in dorsal view in T. centralis sp. nov. (Fig. 1 C; vs located at the tip of tibia); anterior radical process present in T. centralis sp. nov. (Fig. 1 C; vs absent).
Description.
Male (holotype, Fig. 2 D – F): total length: 1.40. Carapace 0.76 long, 0.53 wide, brown, cephalic region strongly elevated, cephalic pits present behind the PLEs, fovea, cervical and radial grooves distinct. Clypeus 0.20 high. Chelicerae with five promarginal and five retromarginal teeth. Sternum yellowish brown as long as wide, shield-like, with microsetae. Eyes: AER recurved, PER procurved, slightly wider than AER, PMEs present on cephalic lobe. Eye sizes and interdistances: AME 0.03, ALE 0.06, PME 0.05, PLE 0.05, AME – AME 0.01, PME – PME 0.05, AME – ALE, 0.02, PME – PLE 0.06, AME – PME 0.08, ALE – ALE 0.24, PLE – PLE 0.25, ALE – PLE 0.01. Length of legs: I 1.93 (0.55, 0.20, 0.48, 0.38, 0.32), II 1.73 (0.47, 0.19, 0.40, 0.36, 0.31), III 1.46 (0.43, 0.17, 0.29, 0.32, 0.25), IV 1.97 (0.54, 0.18, 0.50, 0.41, 0.34). TmI 0.41 and TmIV absent. Tibial spine formula: 1-1 - 1 - 1. Opisthosoma 0.81 long, 0.52 wide, oval, greenish.
Palp (holotype, Fig. 1 A – D; a paratype, Fig. 2 A – C). Femur unmodified, almost as long as both patella and tibia. Patella longer than tibia. Tibia widest at distal end, with one retrolateral and one dorsal trichobothria, dorsal tibial apophysis half the length of tibia, tapering towards tip with blunt end; paracymbium U-shaped, basally with setae, distal arm tip with blunt end; tegulum almost round, ventrally bulging above subtegulum, protegulum distinct, membranous; suprategulum small, with small median suprategular apophysis, invisible on unexpanded palp, distal suprategular apophysis membranous; embolic division simple, consisting of a radix longer than wide; tailpiece round; median membrane short; anterior radical process somewhat triangular with pointed end; embolus short, horn-shaped, slightly curved with pointed end.
Female. Unknown.
Distribution.
Known only from the type locality (Fig. 12).
description: Published as part of Irfan, Muhammad, Yun, Dai, Lu-Yu, Wang & Zhi-Sheng, Zhang, 2024, Four new species of Tapinocyba Simon, 1884 (Araneae, Linyphiidae) from Jiangjin District of Chongqing, China, pp. 195-214 in ZooKeys 1219 on pages 195-214, DOI: 10.3897/zookeys.1219.133899