Camptoscaphiella trifoliata Tong & Li, 2024

Wang, Xiaohan, Tong, Yanfeng & Li, Shuqiang, 2024, Four new species of the genus Camptoscaphiella Caporiacco, 1934 (Araneae, Oonopidae) from Xizang, China, ZooKeys 1208, pp. 81-98 : 81-98

Camptoscaphiella trifoliata Tong & Li sp. nov.

Figs 6 , 7 , 8 , 12

Material examined.

Holotype China • ♂ ( SYNU -1145 ); Xizang, Rikaze City, Jilong Co., Zalong Vill. ; 28 ° 22.865 ' N, 85 ° 21.158 ' E, 2715 m; 31. VII. 2014; Y. Li leg.

Paratypes: China • 1 ♀ ( SYNU -1100 ); Rikaze City, Dingjie Co., Chentang Town ; 27 ° 54.875 ' N, 87 ° 28.869 ' E, 3267 m; 3. VIII. 2014; Y. Li leg. • 1 ♂ ( SYNU -1099 ); Rikaze City, Dingri Co., Rongxia Town ; 28 ° 03.450 ' N, 86 ° 21.148 ' E, 3383 m; 27. VII. 2014; Y. Li leg. • 2 ♂ ( SYNU -1054 –1055); Nyingchi , Bayi Distr., Bayi Town, Biri Mt; 28 ° 51.334 ' N, 94 ° 47.941 ' E, 2900 m; 11. VII. 2013; Y. Lin leg. • 11 ♀ ( SYNU -1057 –1067); same data as above • 4 ♀ ( SYNU -1146 –1149); same data as above • 2 ♂ 4 ♀ ( SYNU -1113 –1118); Nyingchi, Bayi Distr., Lulang Town ; 29 ° 41.449 ' N, 94 ° 43.605 ' E, 3530 m; 14. VII. 2013; Y. Lin leg. • 9 ♂ 2 ♀ ( SYNU -1101 –1112); Nyingchi, Bayi Distr., Lulang Town ; 29 ° 21.449 ' N, 94 ° 43.605 ' E, 3530 m; 14. VII. 2013; Q. Cao leg. • 5 ♂ 1 ♀ ( SYNU -1068 –1073); Nyingchi , Mainling Co.; 29 ° 13.310 ' N, 94 ° 13.309 ' E, 3050 m; 13. VIII. 2013; Y. Lin leg. • 2 ♂ 1 ♀ ( SYNU -1152 –1154); same data as above • 6 ♂ 4 ♀ ( SYNU -1074 –1083); Nyingchi , Mainling Co.; 29 ° 12.316 ' N, 94 ° 12.649 ' E, 3060 m; 13. VIII. 2013; Y. Lin leg. • 4 ♂ 10 ♀ ( SYNU -1084 –1097); Nyingchi , Mainling Co., Pai Town; 29 ° 30.264 ' N, 94 ° 53.868 ' E, 3321 m; 6. VIII. 2015; J. Wu leg.

Diagnosis.

Males of this new species are similar to those of C. yujufeng Tong & Yang, 2023 , but can be distinguished by lacking a cluster of black, strong setae on the labium (Fig. 6 D ) vs. setae cluster present ( Wang et al. 2023: fig. 5 D) and psemblous with trifurcate process (tfp, Fig. 7 D, K ) vs. with semicircular, prolateral rim and trifurcate ventral process ( Wang et al. 2023: fig. 6 E, J). Females of the new species are similar to those of C. zayu sp. nov., but can be distinguished by the fusiform median plate (Fig. 8 H ) vs. pear-shaped (Fig. 11 H ) and the long copulatory duct, which extends beyond the postgastric scutum (Fig. 8 I ) vs. just reaching groove between posterior spiracles (Fig. 11 I ).

Description.

Male (holotype). Body: uniformly colored, yellowish brown; habitus as in Fig. 6 A, C, E ; length 1.75. Carapace (Fig. 6 B, F ): 0.84 long, 0.68 wide; pars thoracica strongly elevated in lateral view, entire surface finely reticulated. Eyes (Fig. 6 B, G ): ALE: 0.07; PME: 0.05; PLE: 0.04; ALE circular, PME oval, PLE oval; posterior eye row straight from above, procurved from front; ALE separated by less than one radius. Clypeus (Fig. 6 F, G ): margin unmodified, straight in front view, sloping forward in lateral view. Mouthparts (Fig. 6 D, G ): chelicerae unmodified; anterior-median part of the endites slightly sclerotized. Sternum (Fig. 6 D ): as long as wide, with pointed anterolateral bumps. Abdomen (Fig. 6 A, C, E ): 0.91 long, 0.53 wide; oval, scuta pale orange; dorsal scutum covering about 3 / 4 of abdomen length, about 2 / 3 of abdomen width, fused to epigastric scutum; postgastric scutum small, covering about 1 / 2 of abdominal venter. Palp (Fig. 7 A – L ): reddish brown; patella extremely long club-shaped, length / width = 3.41, about 5.5 times longer than femur, and 2.5 times longer than bulb; cymbium (length / width = 1.92) narrow in dorsal view; psembolus with trifurcate process (tfp), ventral outgrowth (vo) and small retrolateral fold (rlf).

Female ( SYNU -1100 ). As in male except for the following. Body: habitus as in Fig. 8 A, C, E ; length 1.94. Carapace: 0.83 long, 0.74 wide. Eyes: ALE 0.07; PME 0.05; PLE 0.06. Abdomen: 1.11 long, 0.76 wide. Postgaster (Fig. 8 F, H ): with rounded anterior sclerite (as) and fusiform median plate (mp). Endogyne (Fig. 8 I ): copulatory duct (cd) long, narrow, sinuous with tip well beyond postepigastric scutum; apodemes (ap) slender.

Etymology.

The specific name, derived from Latin word trifoliatus, refers to the three-forked processes on the distal part of the bulb; adjective.

Distribution.

Known only from the type locality.

Figures

Figure 6. Camptoscaphiella trifoliata sp. nov., male holotype A, C, E habitus, dorsal, ventral and lateral views, arrow shows the pointed anterolateral bumps B, D, F, G prosoma, dorsal, ventral, lateral and anterior views. Scale bars: 0.4 mm (A – G).

Figure 7. Camptoscaphiella trifoliata 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: rlf = retrolateral fold; tfp = trifurcate process; vo = ventral outgrowth. Scale bars: 0.2 mm (A – C, E, F, J – L); 0.05 mm (D, H, G); 0.01 mm (I).

Figure 8. Camptoscaphiella trifoliata sp. nov., female paratype (SYNU - 1146) 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).

Figure 11. Camptoscaphiella zayu sp. nov., female paratype (SYNU - 1142) 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).

Figure 12. Distribution records of four new species of the genus Camptoscaphiella from Xizang, China. 1. C. metok sp. nov. 2. C. shannan sp. nov. 3. C. trifoliata sp. nov. 4. C. zayu sp. nov.