Prosoponoides bangbieensis, 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 : 207-215

Prosoponoides bangbieensis sp. nov. (ỄŠAEƦ) Figures 257 , 269

Types. Holotype ♀, CHINA, Yunnan, Longling County, Zhen’an Township, Bangbie Village , at steam at 6.8 km on Route S 317, 24.81333°N, 98.83280°E, alt. 1545–1560m, weedy vegetation along stream, beating vegetation, 24 May 2005, Charles Griswold leg. ( CGY118 ).

Etymology. This epithet derives from the type locality.

Diagnosis. The new species resembles Prosoponoides corneus sp. nov. in the entrance grooves with one and half coils in epigyne ( Fig. 257B, C ; Fig. 259A–C ), but can be distinguished by the parmula as long as epigynal plate P. bangbieensis sp. nov. ( Fig. 257B, C ), whereas parmula 1/3 of the epigynal plate length in P. corneus sp. nov. ( Fig. 259A–C ).

Description. Female (holotype, Fig. 257A ): Total length: 3.47. Carapace 1.31 long, 1.03 wide; cephalic region slightly elevated, brown; fovea, cervical and radial grooves distinct. Clypeus 0.19 high. Sternum longer than wide, brown,, sparsely covered with microsetae. Labium wider than long. Maxillae long, distal end broad with scopulae. Chelicerae with two promarginal and three retromarginal teeth. Eyes: AER recurved, PER straight, slightly wider than AER. Eye sizes and interdistances: AME 0.08, ALE 0.09, PME 0.08, PLE 0.09, AME–AME 0.04, PME–PME 0.08, AME–ALE, 0.07, PME–PLE 0.10, AME–PME 0.09, ALE–ALE 0.46, PLE–PLE 0.49, ALE–PLE contiguous. Length of legs: I 5.38 (1.54, 1.73, 1.34, 0.77), II 4.81 (1.35, 1.57, 1.24, 0.65), III 3.17 (0.94, 0.91, 0.78, 0.54), IV 4.52 (1.25, 1.34, 1.26, 0.67). Leg formula I-II-IV-III. Tm I 0.47 and Tm IV 0.34. Tibial spine formula: 2-2-2-2. Abdomen 2.29 long, 1.70 wide, cylindriform, grayish brown, with longitudinal band followed by oblique bands extending posteriorly and densely covered with white patches: ventral side light brown with a white patch near the base of spinnerets.

Epigyne ( Fig. 257B, C ): Posteriorly with two openings of entrance grooves separated by median septum, margins curved and sclerotized. The entrance groove opening blocked with copulatory plug (seems distal suprategular apophysis of male palp broken into both openings in this female). Triangular parmula extending posteriorly from the dorsal plate, with a large pit ventrally. Vulva longer than wide, entrance grooves started from ventral wall, with one and half coils, turning points and spermathecae present dorso-mesally on apices; spermathecae thumbshaped, slightly overlapping each other, pointing anteriorly; fertilization ducts long, present dorso-laterally, extending mesally.

Male. Unknown.

Distribution. Known only from the type locality ( Fig. 269 ).

Figures

FIGURE 257. Prosoponoides bangbieensis sp. nov., female holotype. A Habitus, dorsal view B Epigyne, ventral view C Vulva, dorsal view.

FIGURE 259. Prosoponoides corneus sp. nov., female (one of paratype). A, B Epigyne, ventral view C Vulva, dorsal view.

FIGURE 269. Distribution of Prosoponoides species.