Four new species of the genus Camptoscaphiella Caporiacco, 1934 (Araneae, Oonopidae) from Xizang, China Author Wang, Xiaohan https://orcid.org/0009-0000-4614-9562 College of Life Science, Shenyang Normal University, Shenyang 110034, Liaoning, China Author Tong, Yanfeng 0000-0002-4348-7029 College of Life Science, Shenyang Normal University, Shenyang 110034, Liaoning, China Author Li, Shuqiang 0000-0002-3290-5416 Institute of Zoology, Chinese Academy of Sciences, Beijing 100101, China text ZooKeys 2024 2024-07-26 1208 81 98 journal article 10.3897/zookeys.1208.127725 64AFF550-64DD-4EBD-AEA5-2C38D0F6083A Camptoscaphiella shannan Tong & Li sp. nov. Figs 3 , 4 , 5 , 12 Material examined. Holotype China • ♂ ( SYNU - 1143); Xizang , Shannan City , Cona Co. , Lemenba Ethnic Township , 17–20 km section from Lewang Bridge to Liulian Hwy ; 27 ° 47.700 ' N , 91 ° 46.417 ' E , 3706 m ; 5. VI. 2016 ; J. Wu leg. Paratypes : China • ♀ ( SYNU - 1144); same data as for holotype • 6 ♀ ( SYNU - 1123–1128); same data as for holotype . Diagnosis. The new species is similar to C. tuberans Tong & Li, 2007 and can be distinguished by the single strong bristle behind cheliceral paturons (Fig. 3 D – H ), vs. bristle absent ( Tong and Li 2007 : fig. 23); the strongly sclerotized median process ( mpr ) and a broad ventral outgrowth ( vo ) of the psembolus (Fig. 4 D, H, K ) vs. lacking the median process and having instead a very narrow, bifurcated ventral outgrowth ( Tong and Li 2007 : figs 25–27); and narrow forcipate median plate ( mp ) of endogyne (Fig. 5 F, H ) vs. circular median plate ( Tong and Li 2007 : fig. 22). Figure 3. Camptoscaphiella shannan sp. nov. , male holotype A, C, E habitus, dorsal, ventral and lateral views B, D, F, H prosoma, dorsal, ventral, lateral and anterior views, arrow shows the pointed anterolateral bumps G labium and endites, ventral view. Scale bars: 0.4 mm ( A – G ). Figure 4. Camptoscaphiella shannan sp. nov. , male left palp A, K prolateral view B, E bulb, prolateral and retrolateral views C, L retrolateral view D, G, H distal part of bulb, prolateral, dorsal and retrolateral views F, J dorsal view I same as G showing the details (arrow). Abbreviations: mpr = median process; pro = prolateral outgrowth; rlf = retrolateral fold; vo = ventral outgrowth. Scale bars: 0.2 mm ( A – C, E, F, J – L ); 0.05 mm ( D, G, H ); 0.01 mm ( I ). Figure 5. Camptoscaphiella shannan sp. nov. , female paratype ( SYNU - 1144) A, C, E habitus, dorsal, ventral and lateral views B, D, G prosoma, dorsal, ventral and anterior views F epigastric region, ventral view H, I endogyne, ventral and dorsal views. Abbreviations: ap = apodemes; as = anterior sclerite; cd = copulatory duct; mp = median plate. Scale bars: 0.4 mm ( A – E, G ); 0.2 mm ( F, H, I ). Description. Male ( holotype ). Body : uniformly colored, yellow; habitus as in Fig. 3 A, C, E ; length 1.83. Carapace (Fig. 3 B, F ): 0.81 long, 0.72 wide; pars thoracica slightly elevated in lateral view, entire surface finely reticulated. Eyes (Fig. 3 B, H ): ALE : 0.08; PME : 0.06; PLE : 0.06; ALE circular, PME oval, PLE oval; posterior eye row straight from above, procurved from front; ALE separated by less than one radius. Clypeus (Fig. 3 F, H ): margin unmodified, straight in front view, sloping forward in lateral view. Mouthparts (Fig. 3 G, H ): with single strong bristle behind paturons; anterior-median part of the endites strongly sclerotized. Sternum (Fig. 3 D ): as long as wide, with pointed anterolateral bumps. Abdomen (Fig. 3 A, C, E ): 1.02 long, 0.73 wide; oval, scuta pale orange; dorsal scutum covering about 2 / 3 of abdomen, 1 / 2 of abdomen width, fused to epigastric scutum; postgastric scutum small. Palp (Fig. 4 A – L ): reddish brown; patella extremely long club-shaped, length / width = 3.30, about 5.8 times longer than femur, and 3.2 times longer than bulb, cymbium narrow (length / width = 1.90) in dorsal view; psembolus with prolateral and ventral outgrowths ( pro and vo respectively), strongly sclerotized median process ( mpr ) and small retrolateral fold ( rlf ). Female ( SYNU - 1144). As in male except for the following. Body : habitus as in Fig. 5 A, C, E ; length 1.98. Carapace : 0.86 long, 0.73 wide. Eyes : ALE 0.07; PME 0.05; PLE 0.07. Abdomen : 1.12 long, 0.80 wide. Postgaster (Fig. 5 F, H ): with stick-like anterior sclerite ( as ) and forcipate median plate ( mp ). Endogyne (Fig. 5 I ): copulatory duct ( cd ) long, narrow, straight with tip well beyond postgastric scutum; apodemes ( ap ) short. Etymology. The specific name refers to the type locality and is a noun in apposition. Distribution. Known only from the type locality.