Tapinocyba centralis, Irfan & Yun & Lu-Yu & Zhi-Sheng, 2024

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, ZooKeys 1219, pp. 195-214 : 195-214

publication ID

https://doi.org/ 10.3897/zookeys.1219.133899

publication LSID

lsid:zoobank.org:pub:40631DBF-34FF-4C81-A6A4-8C940FBA1E69

DOI

https://doi.org/10.5281/zenodo.14269237

persistent identifier

https://treatment.plazi.org/id/7CF42E0A-5805-5EB6-A14A-644EC7A6DC3C

treatment provided by

ZooKeys by Pensoft

scientific name

Tapinocyba centralis
status

sp. nov.

Tapinocyba centralis sp. nov.

Figs 1 View Figure 1 , 2 View Figure 2 , 12 (中盾大蛛 View Figure 12 )

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 GoogleMaps . Paratypes: 3 ♂; same location data as holotype; SWUC -T-LIN-26-02 to SWUC -T-LIN-26-04 GoogleMaps 2 ♂; same location data as holotype; SWUC -T-LIN-26-02 & SWUC -T-LIN-26-03 GoogleMaps 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 GoogleMaps .

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 View Figure 1 , 2 A – C View Figure 2 ; 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 View Figure 1 ; vs located at the tip of tibia); anterior radical process present in T. centralis sp. nov. (Fig. 1 C View Figure 1 ; vs absent).

Description.

Male (holotype, Fig. 2 D – F View Figure 2 ): 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 View Figure 1 paratype, Fig. 2 A – C View Figure 2 ). 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 View Figure 12 ).

Kingdom

Animalia

Phylum

Arthropoda

Class

Arachnida

Order

Araneae

Family

Linyphiidae

SubFamily

Erigoninae

Genus

Tapinocyba