Prosoponoides guanduensis, 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 : 219-221

Prosoponoides guanduensis sp. nov. (ǙẩAEƦ) Figures 263 , 264 , 269

Types. Holotype ♀, CHINA, Yunnan, Kunming City, Guandu District, Heilongtan , Kunming Institute of Botany Botanical Garden , 25.14035°N, 102.74107°E, alt. 1945m, 18 September 2002, D. H. Kavanaugh and P. E. Marek leg. ( DHK –2002–018).

Etymology. This epithet derives from the type locality.

Diagnosis. The new species can be distinguished from all other congeners by the entrance groove with half coil to the spermathecae; spermathecae present at the dorso-lateral of apices ( Fig. 263B, C ).

Description. Female (holotype, Fig. 264A, B ): Total length: 2.64. Carapace 1.10 long, 0.84 wide; cephalic region slightly elevated, brown; fovea, cervical and radial grooves distinct. Clypeus 0.18 high. Sternum longer than wide, cordiform, 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 procurved, slightly wider than AER. Eye sizes and interdistances: AME 0.08, ALE 0.10, PME 0.09, PLE 0.09, AME–AME 0.02, PME–PME 0.07, AME–ALE, 0.05, PME–PLE 0.08, AME–PME 0.06, ALE–ALE 0.43, PLE–PLE 0.47, ALE– PLE contiguous. Length of legs: I 5.11 (1.38, 1.64, 1.31, 0.78), II 4.62 (1.33, 1.44, 1.18, 0.71), III 2.84 (0.83, 0.85, 0.69, 0.47), IV 4.18 (1.19, 1.25, 1.09, 0.65). Leg formula III-IV-III. Tm I 0.51 and Tm IV 0.37. Tibial spine formula: 2-2-2-2. Abdomen 1.53 long, 1.09 wide, oval, brown, with longitudinal band followed by oblique bands extending posteriorly and densely covered with irregular white patches; ventral side light brown with white patches near the base of spinnerets and ventro-lateral sides.

Epigyne ( Fig.263A–C ):Posteriorlywithtwoopenings of entrance grooves separated by median septum, margins curved and sclerotized. Triangular parmula projecting posteriorly from the dorsal plate, with a large pit ventrally. The entrance groove opening blocked with copulatory plug (seems distal suprategular apophysis of male palp broken into both openings in this female). Vulva: wider than long, entrance grooves started from ventral wall, with about half coil, turning points and spermathecae present dorso-laterally on apices; spermathecae short, slightly curved; fertilization ducts long, present dorso-laterally, extending mesally.

Male. Unknown.

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

Figures

FIGURE 263. Prosoponoides guanduensis sp. nov., female holotype. A, B Epigyne, ventral view C Vulva, dorsal view.

FIGURE 264. Prosoponoides guanduensis sp. nov., female holotype. A Habitus, dorsal view B Habitus, ventral view.

FIGURE 269. Distribution of Prosoponoides species.