Sinodraconarius yui Z. Zhao & S. Li, 2018

Li, Bing, Zhao, Zhe, Zhang, Chuntian & Li, Shuqiang, 2018, Sinodraconarius gen. n., a new genus of Coelotinae spiders from Southwest China (Araneae, Agelenidae), ZooKeys 770, pp. 117-135 : 117

Sinodraconarius yui Z. Zhao & S. Li sp. n. Figs 9 , 10 , 11

Coelotes himalayaensis Hu 2001: 134, fig. 45.3-4 (♂ only, ♀ mismatched).

Draconarius himalayaensis Wang 2003: 534 (♂ only, ♀ mismatched); Zhu et al. 2017: 289, fig. 166C-D (♂ only, ♀ mismatched)

Type material.

Holotype ♂ (IZCAS): China: Tibet: Nyingchi: Segula Mountain, N29.605017°, E94.609117°, 4184 ± 4 m, 11.X.2010, Hao Yu leg. Paratypes: 2♂♂ (IZCAS): same data as holotype; 1♀ (IZCAS): China: Tibet: Nyingchi: Positive face of Segula Mountain, N29.607583°, E94.608767°, 4190 ± 13 m, 12.VIII.2010, Hao Yu leg.

Etymology.

The specific name is after Hao Yu, the collector of specimens used in this study; noun (name) in genitive case.

Diagnosis.

The males are similar to these of S. sangjiuensis sp. n. by the ventral branch of the patellar apophysis larger than dorsal one and the apex of the conductor pointed and bent retrolaterally, but can be easily distinguished from S. sangjiuensis sp. n. by the short palp (Figs 1A-C , 9A-C ). The females are similar to S. sangjiuensis sp. n. by having the apex of the septum tapering but can be easily distinguished from S. sangjiuensis sp. n. by the epigynal hoods located anterolaterally vs. mediolaterally in S. sangjiuensis sp. n. (Figs 2A-B , 10A-B ).

Description.

Male (holotype). Total length 7.59. Carapace 4.00 long, 2.60 wide. Abdomen 3.59 long, 2.56 wide. Eye sizes and interdistances: AME 0.09, ALE 0.20, PME 0.14, PLE 0.19; AME-AME 0.08, AME-ALE 0.05, AME-PME 0.16, ALE-PLE 0, PME-PME 0.09, PME-PLE 0.13. Leg measurements: I 12.15 (4.06, 4.00, 2.68, 1.41); II 10.22 (3.44, 3.50, 2.03, 1.25); III 9.99 (3.28, 3.00, 2.40, 1.31); IV 12.82 (4.06, 3.80, 3.40, 1.56). Palp: ventral branch of patellar apophysis larger than dorsal one; anterior 1/5 part of RTA extending beyond the tibia; LTA obvious; cymbial furrow less than 1/4 of cymbium length; the apex of conductor concave and spiral; median apophysis conspicuous, finger-like, the apex of the median apophysis expanded and open; dorsal conductor apophysis broad, the visible part (between conductor and tegulum) hidden by conductor in ventral view; embolus beginning at position 10 o’clock (Fig. 9A-C ).

Female (paratype). Total length 7.89. Carapace 3.40 long, 2.40 wide. Abdomen 4.49 long, 2.40 wide. Eye sizes and interdistances: AME 0.10, ALE 0.18, PME 0.15, PLE 0.15; AME-AME 0.11, AME-ALE 0.06, AME-PME 0.15, ALE-PLE 0, PME-PME 0.10, PME-PLE 0.15. Leg measurements: I 9.17 (3.58, 2.88, 1.75, 0.96); II 8.66 (3.07, 2.88, 1.75, 0.96); III 8.47 (3.20, 2.56, 1.75, 0.96); IV 11.05 (3.59, 3.52, 2.50, 1.44). Epigyne: apex of the V-shaped septum tapering; hoods located laterally; atrium two times wider than long, occupying approx. 1/4 of epigynal plate; receptacles spaced by the width of a receptacle; the head of the receptacles broad and short, located anteriorly (Fig. 10A-B ).

Comments.

The male of the new species was first described by Hu (2001) as the allotype of Coelotes himalayaensis and later transferred from Coelotes to Draconarius by Wang (2003). However, we found that the male and female of D. himalayaensis were mismatched. Therefore, the male is established as a new species here, and both sexes are described.

Variation.

Total length of males (n = 3) 7.05-7.59.

Distribution.

Known only from Nyingchi, Tibet (Fig. 11 ).

Figures

Figure 1. Left male palp of Sinodraconarius sangjiuensis sp. n., holotype. A Prolateral view B Ventral view C Retrolateral view. Scale bar: equal for A, B, C.

Figure 2. Epigyne and habitus of Sinodraconarius sangjiuensis sp. n. A Epigyne, ventral B Vulva, dorsal C Male habitus, dorsal D Female habitus, dorsal E Female habitus, ventral. Scale bar equal for D and E.

Figure 9. Left male palp of Sinodraconarius yui sp. n., holotype. A Prolateral view B Ventral view C Retrolateral view. Scale bar equal for A, B, C.

Figure 10. Epigyne and habitus of Sinodraconarius yui sp. n. A Epigyne, ventral B Vulva, dorsal C Male habitus, dorsal D Female habitus, dorsal E Female habitus, ventral. Scale bar equal for D and E.

Figure 11. Localities of Sinodraconarius species in the Southwest China. 1 S. cawarongensis sp. n. 2 S. muruoensis sp. n. 3 S. patellabifidus 4 S. sangjiuensis sp. n. 5 S. yui sp. n.