Coelotes septus Wang, Yin, Peng & Xie, 1990

Liu, Ji-he, Xiao, Yong-hong, Zhang, Meng-zhen, Xu, Xiang & Liu, Ke-ke, 2021, Four new coelotine species (Araneae, Agelenidae, Coelotinae) from South China, with the first description of the male of Coelotes septus Wang, Yin, Peng & Xie, 1990, ZooKeys 1029, pp. 93-112 : 93

Coelotes septus Wang, Yin, Peng & Xie, 1990 Figures 1 , 2

Coelotes septus Wang et al. 1990: 224, figs 108-109 (♀); Song et al. 1999: fig. 224P-Q (♀); Wang and Jäger 2007: 34, figs 44-47 (♀); Yin et al. 2012: 996, fig. 510a, b (♀); Zhu et al. 2017: 188, fig. 96A, B (♀).

Material examined.

• 1 ♀, China, Jiangxi Prov., Ji’an City, Jinggangshan County Level City , Ciping Town , Dajing Village , Shiliao Cave , 26°34'12.89"N, 114°07'41.87"E, 950 m, 2 Oct. 2018, Ke-ke Liu et al. leg .; • 4 ♀, 1 ♂, same locality, Dajing Village, Jingzhu Mountain , 26°30'10.8"N, 114°5'16.8"E, 1085 m, 20 Dec. 2015, Ke-ke Liu et al. leg .; • 1 ♀, same locality, Lingxiufeng Scenic Spot , 26°34'12"N, 114°7'19.2"E, 947 m, 25 Aug. 2015, Ke-ke Liu et al. leg .; • 1 ♀, same locality, Xiajing Village , 26°34'12"N, 114°7'19.2"E, 927 m, 26 Aug. 2015, Zhi-wu Chen et al. leg .

Diagnosis.

The male resembles Coelotes conversus Xu & Li, 2006 in having a long, broad, curved conductor and the small triangular retrolateral apophysis, but can be easily separated by the absence of a patellar apophysis (vs. long patellar apophysis in C. conversus ), the indistinct median apophysis (vs. spoon-like in C. conversus ), and a tooth-like sclerite (vs. absent in C. conversus ) (Fig. 1C-E ) on the male palp. The female of this species is easily recognized by the transversal slit-shaped copulatory openings (vs. arc-shaped, longitudinal, or other), and the touching triangular copulatory ducts (vs. tube-shaped, sac-shaped, ellipsoidal, and other) (Fig. 2C, D ).

Description.

Male. Habitus as in Fig. 1A, B . Total length 7.12. Carapace 3.66 long, 2.65 wide. Eyes sizes and interdistances: AME 0.09; ALE 0.14; PME 0.14; PLE 0.18; AME-AME 0.06; AME-ALE 0.06; PME-PME 0.08; ALE-ALE 0.34; PME-PLE 0.13; PLE-PLE 0.59; ALE-PLE 0.06; AME-PME 0.06; AME-PLE 0.22. MOA: 0.62 long; 0.56 anterior width, 0.62 posterior width. Chelicerae with three promarginal teeth (median largest) and two retromarginal teeth (distal larger). Leg measurements: I 8.88 (2.22, 0.6, 2.29, 2.27, 1.50); II 8.14 (2.26, 0.52, 1.92, 2.02, 1.42); III broken; IV 10.34 (2.72, 0.84, 1.98, 3.43, 1.37). Abdomen 3.23 long, 2.29 wide.

Coloration. Carapace yellow-brown. Chelicerae red-brown. Endites, labium, and sternum yellow-brown. Legs yellow-brown. Abdomen dark brown, dorsally with five pale chevron stripes on sub-medial part.

Palp (Fig. 1C-E ). Femur and patella without apophysis. Tibia with wide ventrolateral apophysis and small retrolateral apophysis. VTA extending beyond half of tibia, strongly sclerotized; RTA small, <1/5 × length of ventrolateral apophysis, apex pointing to the base of cymbium. Cymbial furrow slightly shorter than half of the cymbial length in retrolateral view. Median apophysis indistinct, slightly protruding. Sclerite, tooth-like in retrolateral view, located near the base of embolus; conductor, extending transversally, apical part hook-shaped and pointing to distal part of cymbium, with many ridges; basal part with a long, curved, sclerotized dorsal apophysis, less than the length of transversal conductor; embolus whip-shaped, originating at the 6 o’clock position, coiled around the margin of cymbium and posteriorly curved and embedded in the furrow of conductor.

Female. Habitus as in Fig. 2A, B . Total length 5.57. Carapace 2.68 long, 1.93 wide. Eye sizes and interdistances: AME 0.12; ALE 0.14; PME 0.14; PLE 0.15; AME-AME 0.12; AME-ALE 0.06; PME-PME 0.08; ALE-ALE 0.36; PME-PLE 0.07; PLE-PLE 0.50; ALE-PLE 0.06; AME-PME 0.07; AME-PLE 0.19. MOA: 0.21 long; 0.28 anterior width, 0.36 posterior width. Chelicerae with three promarginal teeth (proximal smallest, median largest) and five retromarginal teeth (proximal smallest, sub-distal largest). Leg measurements: I 9.05 (2.45, 0.63, 2.39, 2.08, 1.5); II 8.46 (2.29, 0.74, 2.01, 1.88, 1.54); III 6.97 (2.11, 0.46, 1.79, 1.66, 0.95); IV 8.25 (2.23, 0.54, 2.25, 1.71, 1.52). Pedicel 1.17. Abdomen 3.02 long, 2.03 wide.

Epigyne (Fig. 2C, D ). Atrium broad, transversal, anteriorly located. Epigynal hoods concave, located at anterior margin, separated by> 2 × length. Copulatory openings located at postero-lateral of the atrium, transversal, slit-like. Epigynal tooth absent. Copulatory ducts triangular, broad, covering anterior part of spermathecae, extending from copulatory openings to sub-posterior part of spermathecae. Spermathecae sac-shaped, including a few thin tubes, anterior part slightly separated, posterior part separated by less than their maximum widths. Fertilization ducts located at the posterior part of the spermathecae, slightly curved forward laterally.

Comments.

This species was described by Yin et al. (1990) based on five female specimens, collected from Yanling County, Hunan Province and was not collected after its original description. Xin-ping Wang ( Zhu et al. 2017) re-examined the holotype, providing more detailed characters that make this species more easily identified. Coelotes septus does not belong to the two groups recognized from China and defined by Wang (2002), namely the Coelotes atropos group and the Coelotes pseudoterrestri group. It is also different from other Coelotes species in the patellar apophysis and tooth-like sclerite of male palps, epigynal teeth, and transverse slit-like copulatory openings of the female epigyne. Hence, it is possible that it is not a true Coelotes species. However, it was placed in the genus Coelotes in its initial description; therefore, it is provisionally retained in Coelotes .

Distribution.

Known only from Jiangxi and Hunan Provinces, China (Fig. 8 ).

Figures

Figure 1. Coelotes septus Wang et al., 1990, male A habitus, dorsal view B same, ventral view C palp, ventral view D same, prolateral view E same, retrolateral view. Scale bars: 1 mm (A, B); 0.1 mm (C-E). Abbreviations: CF - cymbial furrow, Con - conductor, DAC - dorsal apophysis of conductor, Em - embolus, MA - median apophysis, RTA - retrolateral tibial apophysis, TS - tooth-like sclerite, VTA - ventrolateral tibial apophysis.

Figure 2. Coelotes septus Wang et al., 1990, female A habitus, dorsal view B same, ventral view C epigyne, ventral view D vulva, dorsal view. Scale bars: 1 mm (A, B); 0.1 mm (C, D). Abbreviations: At - atrium, CD - copulatory duct, CO - copulatory opening, EH - epigynal hood, FD - fertilization duct, Spe - spermatheca.

Figure 8. Type localities of Coelotes septus Wang et al., 1990, Draconarius lingdang sp. nov., D. substrophadatus sp. nov., Orumcekia cipingensis sp. nov., and Tonsilla shuikouensis sp. nov.