Anapistula sanjiao S. Li & Lin, 2022

Wang, Shuqiao, Lu, Ying, Li, Ya, Li, Shuqiang & Lin, Yucheng, 2022, Systematic notes on three troglobitic Anapistula (Araneae, Symphytognathidae) spiders from China, with the descriptions of two new species, ZooKeys 1130, pp. 167-189 : 167

publication ID	https://dx.doi.org/10.3897/zookeys.1130.91467
publication LSID	lsid:zoobank.org:pub:991C7618-4FD0-4191-A411-9F6AB775D3AF
persistent identifier	https://treatment.plazi.org/id/7A23C5A8-EB67-46B6-A26E-D0C18CE53952
taxon LSID	lsid:zoobank.org:act:7A23C5A8-EB67-46B6-A26E-D0C18CE53952
treatment provided by	ZooKeys by Pensoft
scientific name	Anapistula sanjiao S. Li & Lin
status	sp. nov.

Treatment

Anapistula sanjiao S. Li & Lin sp. nov.

Figs 3A, D, G, J View Figure 3 , 4A-E View Figure 4 , 7A-D View Figure 7

Type material.

Holotype ♀ and paratypes 1♂ 2♀ (NHMSU-HA125), China: Yunnan Province, Kunming City, Yiliang County, Jiuxiang Township, Dazhezong Village, Sanjiao Cave (25.13439°N, 103.39932°E, 1833 m), 24.VIII.2018, Y. Lin, Y. Li & Y. Shu leg.; 1♂ and 1♀ (NHMSU-HA125) used for sequencing, GenBank accession numbers given in Table 2 View Table 2 , same data as for preceding.

Etymology.

The new species is named after the type locality; noun.

Diagnosis.

The male of this new species is similar to that of A. zhengi in the overall shape of the palp and in having C1 and C2 roughly as sharp as A. zhengi but differs in the length of C1 with respect to C2 and the presence of a small median projection between C1 and C2 (cf. Figs 4A View Figure 4 , 7A View Figure 7 to Lin et al. 2013: figs 6, 7). The female can be distinguished from most Anapistula species by the Y-shaped MD and its width greater than half the diameter of one spermatheca. The configuration of the vulva of Anapistula sanjiao sp. nov. seems most similar to that of A. choojaiae but differs by the smaller size of the spermathecae compared to the width of the MD, and the ends of the Llb are located beyond the anteromargin of the spermathecae (cf. Figs 4E View Figure 4 , 7D View Figure 7 to Rivera-Quiroz et al. 2021: fig. 9c).

Description.

Male: carapace ovoid, pale yellow with smooth surface and two central short setae (Fig. 3A View Figure 3 ). Lateral eyes degenerated into white eyespots, almost invisible (Fig. 3A View Figure 3 ). Chelicerae with two promarginal teeth. Labium rectangular, fused to sternum (Fig. 3D View Figure 3 ). Sternum peltate, slightly longer than wide, smooth, slightly convex, with sparse short setae, truncated posteriorly (Fig. 3D View Figure 3 ). Legs same colour as carapace. Abdomen sub-spherical, darker than prosoma and legs, cuticle with sparse long setae and weakly sclerotized patches (Fig. 3A, D View Figure 3 ). Spinnerets and anal tubercle pale yellow. Somatic measurements: body length 0.58, carapace 0.28 long, 0.24 wide, 0.20 high; sternum 0.20 long, 0.18 wide; length of legs: I 0.90 (0.24, 0.08, 0.22, 0.14, 0.22), II 0.76 (0.18, 0.10, 0.12, 0.10, 0.18), III 0.66 (0.12, 0.08, 0.16, 0.10, 0.20), IV 0.86 (0.22, 0.10, 0.20, 0.16, 0.18); leg formula I-IV-II-III; abdomen 0.35 long, 0.34 wide, 0.38 high.

Palp: weakly sclerotized (Figs 4A, B View Figure 4 , 7A, B View Figure 7 ). Femur long, ca 2.2 × length of patella, slightly constricted in ventral middle. Patella nearly cubic. Tibia oblate, ca 1.4 × length of patella. Cymbium wraps around bulb prolaterally, with long setae at distal margin (Figs 4A View Figure 4 , 7A View Figure 7 ). Sheath like conductor divided into two distal, sharp projections (C1 and C2 in Figs 4A, B View Figure 4 , 7A, B View Figure 7 ); C1 longer than C2. Sperm duct (Sd) completes ca 1.8 loops in the bulb. Embolus sharp, protrudes from lower retrolateral edge of bulb, extends to retrolateral side of C1. End of embolus does not extend beyond CI. Embolic end no exceeds the C1 (Figs 4A, B View Figure 4 , 7A, B View Figure 7 ).

Female: habitus as in male, except without palps (Fig. 3G, J View Figure 3 ). Somatic measurements: body length 0.60, carapace 0.28 long, 0.25 wide, 0.24 high; sternum 0.22 long, 0.20 wide; length of legs: I 1.10 (0.32, 0.12, 0.24, 0.20, 0.22), II 0.86 (0.26, 0.10, 0.20, 0.12, 0.18), III 0.76 (0.22, 0.08, 0.16, 0.12, 0.18), IV 0.88 (0.20, 0.10, 0.24, 0.16, 0.18); leg formula I-IV-II-III; abdomen 0.36 long, 0.0.32 wide, 0.40 high.

Epigyne: flat, without scape. Internal structures faintly visible via cuticle (Fig. 4C View Figure 4 ). Atrium long, subtriangular. Spermathecae spherical, strongly sclerotized relative to rest of body (Fig. 3J View Figure 3 ). MD as wide as diameter of spermatheca (Figs 4E View Figure 4 , 7C View Figure 7 ). Lb diverging from the MD, forming a “Y” shape (Figs 4E View Figure 4 , 7D View Figure 7 ). Lb as long as MD, wide as ca ½ of MD. Llb small, nodular, at distal end of Lb (Figs 4E View Figure 4 , 7D View Figure 7 ).