Himalaphantes arcuatus, Zhang & Liu & Irfan & Peng, 2022

Zhang, Meng-ting, Liu, Ping, Irfan, Muhammad & Peng, Xian-jin, 2022, A survey of the genus Himalaphantes Tanasevitch, 1992 (Araneae, Linyphiidae) with description of three new species from Yunnan, China, ZooKeys 1123, pp. 47-62 : 47

publication ID	https://dx.doi.org/10.3897/zookeys.1123.86261
publication LSID	lsid:zoobank.org:pub:F36D19E8-F921-405A-AF3E-DB4D8E722724
persistent identifier	https://treatment.plazi.org/id/F23021F9-AAA4-4CFF-974F-07AD6B200EEB
taxon LSID	lsid:zoobank.org:act:F23021F9-AAA4-4CFF-974F-07AD6B200EEB
treatment provided by	ZooKeys by Pensoft
scientific name	Himalaphantes arcuatus
status	sp. nov.

Treatment

Himalaphantes arcuatus sp. nov.

Figs 1 View Figure 1 , 2 View Figure 2 , 10 View Figure 10

Type material.

Holotype ♀: China, Yunnan Province: Longling County, Xiaoheishan Village, 24.5035°N, 98.4571°E, 2106 m, 29.X.2003, Guo Tang leg. (031029). Paratypes: 17♀♀, same data as holotype (031029).

Etymology.

The specific epithet is derived from the Latin adjective " arcuata " (arched), referring to the arched spermatheca.

Diagnosis.

This new species resembles Himalaphantes uncatus sp. nov. (Fig. 8 View Figure 8 ), but can be distinguished by: (1) stretcher wider than long, with rounded end in H. arcuatus sp. nov. (Fig. 1C View Figure 1 ), whereas as wide as long, posterior margin with depression medially in H. uncatus sp. nov. (Fig. 8C View Figure 8 ); (2) spermathecae C-shaped in H. arcuatus sp. nov. (Fig. 1C View Figure 1 ), whereas sinuous in H. uncatus sp. nov. (Fig. 8C View Figure 8 ); (3) chelicerae with four retromarginal teeth in H. arcuatus sp. nov., whereas with five retromarginal teeth in H. uncatus sp. nov.

Description.

Female (holotype) (Fig. 2A, B View Figure 2 ). Total length 3.60. Carapace 1.12 long, 1.16 wide, yellow, sides brown, cephalic region slightly elevated, fovea, cervical and radial grooves distinct; clypeus 0.19 high. Sternum scutiform, brown. Endites brown, distal end broad with scopulae. Labium brown, wider than long. Chelicerae brown, with three promarginal and four retromarginal teeth. Eye sizes and interdistances: AME: 0.09, ALE: 0.11, PME: 0.07, PLE: 0.09, AME-AME: 0.06, AME-ALE: 0.08, PME-PME: 0.04, PME-PLE: 0.06, ALE-PLE: 0.03. Legs yellow with dark annuli. Spines: femur I-II: 1-1-0-0, III-IV: 0-0-0-0; tibia I-II: 2-2-2-2, III: 2-1-2-1, IV 2-2-2-1; metatarsus I, IV: 1-1-1-0, II-III: 1-1-1-1. Leg measurements: I, 8.01 (2.17, 2.77, 2.39, 0.68); II, 7.07 (1.75, 2.19, 1.97, 1.16); III, 4.98 (1.28, 1.46, 1.47, 0.77); IV, 6.65 (1.21, 2.07, 1.81, 1.56); leg formula 1243. Abdomen 2.41 long, 1.73 wide, oval, dorsum greyish yellow, with a dark longitudinal band and light spots dispersed anteriorly, irregular dark markings posteriorly; ventrum grayish yellow, with irregular dark or light spots.

Epigyne (Fig. 1A-C View Figure 1 ). Wider than long, proscapus wider than long, posterior margin with a deep depression medially, each side with one small protuberance; stretcher longer than wide, with rounded end. Posterior median plate trapezoid, covering most of the stretcher. Copulatory opening present in the middle of proscapus posteriorly. Copulatory ducts short, slightly curved. Spermathecae C-shaped.

Male. Unknown.

Distribution.

Known only from the type locality (Fig. 10 View Figure 10 ).