Prosoponoides yani, 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 : 240-243

Prosoponoides yani sp. nov. (颜DzAEƦ)

Figures 280 , 281 , 286

Types: Holotype ♀, CHINA, Yunnan, Nujiang Prefecture, Nujiang State Nature Reserve, Dulong Gongshan Yakou area , 21 km W of Gongshan, 27.69655°N, 98.45389°E, alt. 3300–3680m, 16–17 July 2000, Heng-mei Yan, D.H. Kavanaugh, Charles Griswold, Hong-bin Liang, Darrell Ubick and Da-zhi Dong leg. (00–BY) . Paratypes: 3♀, same data as holotype (00–BY) ; 1♀, Gongshan County, Cikai Township , Dahaituo, 27.78440°N, 98.46038°E, alt. 3363m, 13 August 2006, Peng Hu leg. (Hu060813) .

Etymology: The epithet is a patronym in honor of Prof. Yan Heng-mei, who contributed much work to the taxonomy of Chinese spiders; noun.

Diagnosis: This new species can be distinguished from all other congeners by: the entrance grooves with four and half coils before entering the spermathecae ( Fig. 280C, D ), spermathecae elliptical ( Fig. 280C, D ).

Description. Female (holotype, Fig. 281A, B ). Total length 3.36. Carapace 1.22 long, 0.94 wide, dark brown; fovea, cervical and radial grooves distinct. Clypeus 0.24 high. Sternum dark brown, longer than wide, with sparse hairs. Labium brown, wider than long. Maxillae long, distal end pale, broader with scopulae and spinelike hairs. Chelicerae yellow, with five promarginal and four retromarginal teeth, stridulatory striae absent. AER recurved, PER straight, slightly wider. Eye sizes and interdistances: AME 0.08, ALE 0.09, PME 0.08, PLE 0.08, AME–AME 0.04, PME–PME 0.06, AME–ALE, 0.05, PME–PLE 0.07, AME–PME 0.08, ALE–ALE 0.44, PLE–PLE 0.47 ALE–PLE contiguous. Length of legs: I 4.49 (1.21, 1.37, 1.13, 0.78), II 4.25 (1.18, 1.32, 1.09, 0.66), III 2.81 (0.89, 0.84, 0.67, 0.41), IV 3.80 (1.13, 1.19, 0.94, 0.54), long, slender, yellow. Leg formula: I-II-IVIII. Tm I 0.51. Tibial spine formula: 2-2-2-2.Abdomen; 2.14 long, 1.48 wide, cylindrical, mid dorsally with distinct pattern and a longitudinal yellow strip on each side; ventral side grayish brown.

Epigyne ( Fig. 280A–D ): Aperture oval, septum relatively squeezed, dividing aperture into two parts. Parmula relatively reduced. Vulva: entrance grooves very thick, each with four and half coils, spermathecae pointing in opposite direction from each other.

Male. Unknown.

Distribution. Known only from the type locality ( Fig. 286 ).

Figures

FIGURE 280. Prosoponoides yani sp. nov. female holotype. A, B Epigyne, ventral view C Vulva, dorsal view D Vulva, anterior view.

FIGURE 281. Prosoponoides yani sp. nov. female holotype. A Habitus, dorsal view B Habitus, ventral view.

FIGURE 286. Distribution of Prosoponoides species.