Camptoscaphiella changxu Tong & Li, 2021

Huang, Ying, Bian, Dongju, Tong, Yanfeng & Li, Shuqiang, 2021, Two new species of the genus Camptoscaphiella from Yunnan, China (Araneae, Oonopidae), ZooKeys 1052, pp. 43-53 : 43

Camptoscaphiella changxu Tong & Li sp. nov.

Figures 1 , 2 , 3

Type material.

Holotype ♂ China, Yunnan, Menglun, XTBG, Paramichelia baillonii plantation; 21°53.823'N, 101°17.072'E; 613 m; pitfall traps; 1-15 May 2007; Guo Zheng leg. (SYNU-481). Paratypes [same data as holotype except where indicated] 1♂ (SYNU-482); 1♂ (SYNU-494); 1♂1♀, pitfall traps, 16-31 June 2007 (SYNU-483-484); 1♂, pitfall traps, 1-9 Dec. 2006 (SYNU-485); 1♂, pitfall traps, 1-9 Dec. 2006 (SYNU-486); 1♀ (SYNU-487); 1♂1♀, XTBG, Secondary tropical montane evergreen broad-leaved forest, 21°54.813'N, 101°12.634'E, 876 m, pitfall traps, 16-24 Sep. 2006, Guo Zheng leg. (SYNU-488-489); 1♂1♀, pitfall traps, 1-15 July 2007 (SYNU-490-491); 1♂1♀, pitfall traps, 16-31 June 2007 (SYNU-492-493).

Diagnosis.

This new species is similar to C. schwendingeri Baehr, 2010 (female unknown), but can be distinguished by the long, strongly-curved setae between the cheliceral paturons (Figs 1F, G , 2A-C ) and a uniformly coloured carapace (vs setae absent and the carapace with a longitudinal brown stripe ( Baehr and Ubick 2010: figs 327-331)). Females of this new species can be distinguished from congeners by the star-shaped structure of the endogyne and the strongly-curved copulatory duct (Fig. 3H-J ).

Description.

Male (holotype): Body: uniformly colored, yellow; habitus as in Fig. 1A, C, E ; length 1.29. Carapace (Fig. 1B, F ): 0.65 long, 0.59 wide; pars cephalica strongly elevated in lateral view, surface of elevated portion and sides of pars cephalica finely reticulate. Eyes (Fig. 1B, G ): ALE 0.057; PME 0.049; PLE 0.049; ALE circular, PME oval, PLE oval; posterior eye row procurved from both above and front; ALE separated by less than one radius. Clypeus (Fig. 1F, G ): margin unmodified, straight in front view, sloping forward in lateral view. Mouthparts (Figs 1F, G , 2A-C ): with several long, strongly-curved setae between paturons. Sternum (Fig. 1D ): as long as wide, pale orange, surface finely reticulate. Abdomen (Fig. 1A, C, E ): 0.67 long, 0.41 wide; oval, scuta pale orange; dorsal scutum covering about 2⁄3 of abdomen length, between 1/2 and 3⁄4 of abdomen width, not fused to epigastric scutum; postgastric scutum small, just near epigastric furrow. Legs: pale orange. Palp (Figs 1H, I , 2D-K ): reddish-brown; patella extremely long club-shaped, about 4.3 times of the femur length, and 2.1 times of the bulb length; cymbium narrow in dorsal view; distal part of bulb with a broad ventral process (vp) and a narrow dorsal process (dp), the dorsal one with basally wing-shaped appendices (wa).

Female (SYNU-484): Body: habitus as in Fig. 3A-C ; length 1.37. Carapace: 0.62 long, 0.57 wide. Eyes: ALE 0.065; PME 0.049; PLE 0.057. Mouthparts: chelicerae unmodified. Abdomen: 0.79 long, 0.52 wide. Epigastric area (Fig. 3H, I ): surface without external features. Endogyne (Fig. 3J ): with an anterior star-shaped structure (ss); copulatory duct (cd) very long, strongly curved; apodemes thread-shaped (a).

Etymology.

The specific name is derived from Chinese pinyin, " Camptoscaphiella changxu ", which means “macrochaeta”, referring to the long, curved setae between male cheliceral paturons; noun in apposition.

Comments.

The male chelicerae are unmodified in species considered to belong to the genus ( Baehr and Ubick 2010). The long, strongly-curved setae between male cheliceral paturon of this species are unique in this genus, even in the entire order.

Distribution.

Known only from the type locality.

Figures

Figure 1. Camptoscaphiella changxu sp. nov., male holotype (SYNU- 481) A, C, E habitus in dorsal, ventral, and lateral views B, D, F, G prosoma in dorsal, ventral, lateral, and anterior views H, I left palp in prolateral and retrolateral views. Scale bars: 0.4 mm (A, C, E); 0.2 mm (B, D, F-I).

Figure 2. Camptoscaphiella changxu sp. nov., male holotype (SYNU- 481), SEM A-C prosoma in anterior, lateral, and ventral views D-F left palp, prolateral, retrolateral, and dorsal views G, J, K distal part of bulb, dorsal, prolateral, and retrolateral views H, I left palpal bulb, prolateral and retrolateral views. Abbreviations: dp = dorsal process; po = pore; vp = ventral process; wa = wing-shaped appendices. Scale bars: 0.2 mm (A-E); 0.1 mm (F, H, I); 0.05 mm (G, J, K).

Figure 3. Camptoscaphiella changxu sp. nov., female paratype (SYNU- 484) A-C habitus in dorsal, ventral, and lateral views D-G prosoma in dorsal, ventral, anterior, and lateral views H epigastric region, ventral view I, J endogyne (cleared in lactic acid), ventral and dorsal views. Abbreviations: a = apodemes; cd = copulatory duct; ss = star-shaped structure. Scale bars: 0.4 mm (A-C); 0.2 mm (D-G); 0.1 mm (H-J).