Sinodraconarius cawarongensis 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 cawarongensis Z. Zhao & S. Li sp. n. Figs 3 , 4 , 11

Type material.

Holotype ♂ (IZCAS): China: Tibet: Zayü: Cawarong Township, 3.5 km E of Jumuchang, N28.55227°, E98.19554°, 3145 m, 7.IX.2014, Jincheng Liu leg. Paratypes: 13♂♂, 4♀♀ (IZCAS): same data as holotype; 9♂♂, 1♀ (IZCAS): China: Tibet: Zayü: Zhowagoin Township, Ridong Village, N28.49183°, E98.11320°, 3495 m, 4.IX.2014, Jincheng Liu; 6♂♂, 2♀♀ (IZCAS): China: Tibet: Zayü: Zhowagoin Township, 6 km N of Muruo Village, N28.59332°, E98.02774°, 3955 m, 5.IX.2014, Jincheng Liu leg.

Etymology.

The specific name refers to the type locality, Cawarong Township; adjective.

Diagnosis.

The males are similar to S. patellabifidus by having an indistinct LTA and a long median apophysis but can be differentiated by the branches of the patellar apophysis, with the ventral branch larger than the dorsal branch in retrolateral view vs. the ventral branch equal to the dorsal branch in S. patellabifidus (Figs 3A-C , 7A-C ). The females can be differentiated from S. sangjiuensis sp. n. by having the head of receptacles located anteriorly vs. mediolaterally in S. sangjiuensis sp. n. and the septum indistinct (apex of the septum is tapering in S. sangjiuensis sp. n.) (Figs 2A-B , 4A-B , 8A-B ).

Description.

Male (holotype). Total length 8.45. Carapace 4.50 long, 3.35 wide. Abdomen 3.95 long, 2.65 wide. Eye sizes and interdistances: AME 0.12, ALE 0.18, PME 0.15, PLE 0.16; AME-AME 0.09, AME-ALE 0.05, AME-PME 0.15, ALE-PLE 0, PME-PME 0.13, PME-PLE 0.15. Leg measurements: I 14.86 (5.25, 4.81, 2.88, 1.92); II 13.99 (5.25, 4.25, 2.88, 1.61); III 13.73 (4.75, 3.85, 3.21, 1.92); IV 16.28 (5.45, 4.49, 4.10, 2.24). Palp: with one crescent-like bifurcate patellar apophysis, ventral branch is larger than dorsal branch of patellar apophysis; anterior 1/5 of RTA extending beyond the tibia; LTA indistinct; cymbial furrow less than 1/3 of cymbium length; apex of conductor pointed and bent retrolaterally; median apophysis finger-like, covered in short hairs; dorsal conductor apophysis broad, the visible part (between conductor and tegulum) subtriangular; embolus broad, beginning at position 8:30 o’clock (Fig. 3A-C ).

Female (paratype). Total length 6.90. Carapace 3.40 long, 2.30 wide. Abdomen 3.50 long, 2.50 wide. Eye sizes and interdistances: AME 0.09, ALE 0.16, PME 0.14, PLE 0.15; AME-AME 0.08, AME-ALE 0.05, AME-PME 0.18, ALE-PLE 0, PME-PME 0.13, PME-PLE 0.14. Leg measurements: I 8.68 (3.30, 2.75, 1.66, 0.97); II 8.16 (3.05, 2.49, 1.66, 0.96); III 7.98 (3.15, 2.24, 1.61, 0.98); IV 9.82 (3.75, 2.75, 2.11, 1.21). Epigyne: rectangular; septum indistinct; hoods located anterolaterally on the plate; atrium 3 times longer than wide, anterior part slightly wider than posterior part, occupying about 1/8 of epigynal plate; receptacles broad, separated by a width of a receptacle; the head of receptacles located anteriorly (Fig. 4A-B ).

Variation.

Total length of males (n = 29) 7.69-10.26 and of females (n = 7) 6.90-8.34.

Distribution.

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

Figures

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

Figure 4. Epigyne and habitus of Sinodraconarius cawarongensis 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 7. Left male palp of Sinodraconarius patellabifidus A Prolateral view B Ventral view C Retrolateral view. Scale bar equal for A, B, C.

Figure 8. Epigyne and habitus of Sinodraconarius patellabifidus 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.