Himalaphantes pseudoaduncus, Irfan & Zhang & Peng, 2022

Irfan, Muhammad, Zhang, Zhi-Sheng & Peng, Xian-Jin, 2022, Survey of Linyphiidae (Arachnida: Araneae) spiders from Yunnan, China, Megataxa 8 (1), pp. 1-292 : 123-125

Himalaphantes pseudoaduncus sp. nov. (ẄŤẲĦƦ) Figures 142 , 143 , 146

Types. Holotype ♂, CHINA, Yunnan, Lushui County, Pianma Township, Feng Xue Yakou , 26.00949°N, 98.61704°E, alt. 3142m, along the road, 17 May 2005, Ke-ji Guo leg. ( GKJ006 ) .

Etymology. This epithet derives from the similarity of the new species to Obscuriphantes aduncus sp. nov.

Diagnosis. The male of new species resembles that of Himalaphantes aduncus sp. nov. in having the similar distal suprategular apophysis; proximal cymbial apophysis and lamella characteristca sinuous, protruding above ( Fig. 142A–D ; Fig. 129A–D ), but can be distinguished by the proximal projection of distal arm of paracymbium beak-shaped in H. pseudoaduncus sp. nov. ( Fig. 142B, D ), whereas finger-shaped in H. aduncus sp. nov. ( Fig. 129B, D ). The distal tip of radix somewhat rectangular in H. pseudoaduncus sp. nov. ( Fig. 142A ), whereas round in H. aduncus sp. nov. ( Fig. 129A ). The thumb completely covered by the embolus in H. pseudoaduncus sp. nov. ( Fig. 129A ), whereas not completely covered in H. aduncus sp. nov. ( Fig. 129A ).

Description: Male (holotype, Fig. 143A–D ): Total length: 3.30; carapace 1.69 long, 1.28 wide, yellowish brown; cephalic region slightly elevated, with a longitudinal brown band, lateral sides brown; fovea, cervical and radial grooves distinct. Clypeus 0.28 high. Sternum longer than wide, blackish brown. Labium wider than long, brown. Maxillae long, distal end broad with scopulae. Chelicerae yellowish brown, much longer, with one promarginal and five retromarginal teeth. Eye region narrow, AER recurved, PER straight, slightly wider than AER. Eye sizes and interdistances: AME 0.09, ALE 0.12, PME 0.11, PLE 0.10, AME–AME 0.05, AME–ALE, 0.07, PME–PME 0.07, PME–PLE 0.07, AME–PME, 0.13, ALE–ALE 0.55, PLE–PLE 0.58, ALE–PLE 0.02. Legs with annuli; length of legs: I 10.21 (2.62, 3.17, 2.94, 1.48), II 10.11 (2.48, 3.14, 2.96, 1.53), III 5.50 (1.49, 1.65, 1.53, 0.83), IV 8.09 (2.18, 2.52, 2.21, 1.18); leg formula I-II-IVIII. Tm I 0.73 and Tm IV 0.63. Tibial dorsal spine formula: 2-2-2-2. Abdomen 1.61 long, 0.96 wide, oval, gray–black, proximal end with a pair of oblique gray bands followed by dark black bands posteriorly; ventral side black.

Palp ( Fig. 142A–D ): Patella about 1/3 length of tibia, dorsally with a long thick spine; tibia longer than wide, with two retrolateral and a dorsal trichobothria. Cymbium with a shallow prolateral notch, proximal cymbial apophysis tongue-shaped with blunt end. Paracymbium with fine spines proximally, distal part with a small beak-shaped projection, its distal arm distal arm tip wider than long with blunt end which almost touches the prolateral margin of cymbium. Distal suprategular apophysis sclerotized, dorsal tip hook-shaped, ventral margin transparent. Radix longer than wide, distal tip rectangular. Lamella characteristca sinuous, extending forward with serrated tip. Median membrane broad, curved distally. Embolus small, with pointed tip attached to small thumb.

Female. Unknown.

Distribution. Known only from the type locality ( Fig. 146 ).

Figures

FIGURE 129. Himalaphantes aduncus sp. nov., male palp of holotype. A prolateral view B retrolateral view C dorsal view D ventral view.

FIGURE 142. Himalaphantes pseudoaduncus sp. nov., male palp of holotype. A prolateral view B retrolateral view C ventral view D dorsal view.

FIGURE 143. Himalaphantes pseudoaduncus sp. nov., male holotype. A Habitus, dorsal view, B Habitus, ventral view, C Habitus, lateral view, D Habitus, frontal view.

FIGURE 146. Distribution of Himalaphantes species.