Tapinopa longicisterna, 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 : 268-271

Tapinopa longicisterna sp. nov. (KẽḂƦ)

Figures 305–307

Types. Holotype ♀, CHINA, Yunnan, Tengchong County, Wuhe Township, Tongjia dauzhuang Village , Longchuanjiang river (Longjiang bridge), 24.89284ºN, 98.67439ºE, alt. 1210m, 24 May 2005, Heng-mei Yan and Ke-ji Guo leg. ( GKJ020 ). Paratypes: 3♀, same data as holotype female ( GKJ020 ) .

Etymology. This epithet derives from the Latin adjective “ longi ” and “ cisterna ”, meaning “long” and “receptacle” respectively, referring to the long spermathecae in epigyne.

Diagnosis. The new species can be distinguished from all other congeners by the long scape; entrance grooves with three coiled spirals and the long spermathecae ( Fig. 305A–D ).

Description. Female (holotype, Fig. 306A–C ): Total length: 2.19. Carapace 0.76 long, 0.81 wide, brown; cephalic region slightly elevated; fovea, cervical and radial grooves distinct. Clypeus 0.13 high. Sternum wider than long, cordiform, dark brown, covered, sparsely covered with microsetae. Labium wider than long. Maxillae long, distal end broader provided with scopulae. Chelicerae with four promarginal and three retromarginal teeth. Eye region narrow, AER recurved, PER slightly recurved and wider than AER. Eye sizes and interdistances: AME 0.06, ALE 0.07, PME 0.07, PLE 0.07, AME–AME 0.02, PME– PME 0.04, AME–ALE, 0.03, PME–PLE 0.04, AME– PME 0.06, ALE–ALE 0.29, PLE–PLE 0.32, ALE–PLE contiguous. Length of legs: I 3.89 (1.05, 1.25, 0.99, 0.60), II 3.52 (0.98, 1.11, 0.86, 0.57), III 2.85 (0.83, 0.88, 0.68, 0.46), IV 3.54 (1.03, 1.09, 0.84, 0.58). Leg formula I-IVII-III. Tm I 0.39 and Tm IV 0.27. Tibial spine formula: 2-2-2-2. Abdomen 1.33 long, 0.87 wide, oval, greenishgrey, with irregular white patches extending towards lateral sides; ventral side greenish-grey with two pairs of white spots.

Epigyne ( Fig. 305A–F ): Protruding, scape wider than long, with well developed stretcher; stretcher finger-shaped; entrance groove with three coiled spirals. Spermathecae long, C-shaped.

Male. Unknown.

Distribution. Known only from the type locality ( Fig. 307 ).

Figures

FIGURE 305. Tapinopa longicisterna sp. nov., female holotype. A, B, D Epigyne, ventral view C Epigyne, lateral view E Vulva, dorsal view F Vulva, lateral view.

FIGURE 306. Tapinopa longicisterna sp. nov., female holotype.A Habitus, dorsal view B Habitus, lateral view C Habitus, ventral view.

FIGURE 307. Distribution of Tapinopa longicisterna sp. nov.