Yunguirius terebratus (Peng & Wang, 1997) Li & Zhao & Okumura & Meng & Li & Chen, 2023

Li, Bing, Zhao, Zhe, Okumura, Ken-ichi, Meng, Kaibayier, Li, Shuqiang & Chen, Haifeng, 2023, Yunguirius gen. nov., a new genus of Coelotinae (Araneae, Agelenidae) spiders from southwest China, ZooKeys 1159, pp. 51-67 : 51

Yunguirius terebratus (Peng & Wang, 1997) comb. nov.

Coelotes terebratus Peng & Wang, 1997 in Peng and Wang 1997: 330, figs 27-31; Song et al. 1999: 378, figs 225M, N, 227E, 228H.

Draconarius terebratus (Peng & Wang, 1997) in Wang 2003: 551, figs 63A-E, 96G, H; Yin et al. 2012: 1015, fig. 525a-f; Zhu et al. 2017: 387, fig. 252A-E; Jiang, Chen and Zhang 2018: 77, figs 12A, B, 26K.

Type material

(not examined). Holotype ♀ (HNNU): China: Hunan Province: Zhangjiajie City: Sangzhi County, Tianpingshan Mountain, 16.X.1986, J. Wang leg. Paratype: 1♂ (HNNU): same data as the holotype.

Diagnosis.

Yunguirius terebratus can be distinguished from other species of this genus as follows: 1) atrium subrounded (fig. 28 in Peng and Wang 1997; fig. 252A in Zhu et al. 2017) in Y. terebratus , but inverted trapezoid (Fig. 3A ; fig. 53 in Wang et al. 1990) in Y. ornatus , or cordiform (fig. 245A in Zhu et al. 2017) in Y. subterebratus and Y. xiangding sp. nov. (Fig. 4A ); 2) posterior epigynal sclerite rectangular (fig. 28 in Peng and Wang 1997; fig. 252A in Zhu et al. 2017), but waist-drum-shaped (fig. 245A in Zhu et al. 2017) in Y. subterebratus , or vase-shaped (Fig. 4A ) in Y. xiangding sp. nov.; 3) embolic base with a round apophysis (fig. 31 in Peng and Wang 1997; fig. 252E in Zhu et al. 2017), while subapically with a dentiform apophysis (fig. 30 in Peng and Wang 1997; fig. 252C in Zhu et al. 2017) in Y. terebratus , but absent in Y. ornatus ; and 4) lower branch of conductor falcate and bent ventrally, longer than the length of the upper one (fig. 252D in Zhu et al. 2017) in Y. terebratus , but lamellar, fluted, and pointed, shorter than the length of the upper one (fig. 2 in Zhang 1993; fig. 200D in Zhu et al. 2017) in Y. ornatus .

Description.

Male. See Peng and Wang (1997 figs 30, 31) and Zhu et al. (2017 fig. 252C, D) for complete description.

Female: (fig. 27 in Peng and Wang 1997). Carapace gourd-shaped, longer than abdomen. Abdomen oblong. Epigyne (figs 28, 29 in Peng and Wang 1997; fig. 252A, B in Zhu et al. 2017): epigynal teeth absent, posterior epigynal sclerite rectangular, fold triangular, hood large, c. 2 times larger than the size of its fold; spermathecal head long, twisted and sigmoid in the middle. For further details, see Peng and Wang (1997) and Zhu et al. (2017).

Distribution.

Hunan Province, China (Fig. 5 ).

Figures

Figure 3. Epigyne and female habitus of Yunguirius ornatus comb. nov. A epigyne, ventral B vulva, dorsal C female habitus, dorsal D same, ventral E same, lateral. Scale bar equal for C-E. Abbreviations: A = atrium; CD = copulatory duct; CO = copulatory opening; F = fold; FD = fertilization duct; H = hood; MS = median septum; PES = posterior epigynal sclerite; S = spermatheca; SB = spermathecal base; SH = spermathecal head; St = stalk.

Figure 4. Epigyne and female habitus of Yunguirius xiangding sp. nov. A epigyne, ventral B vulva, dorsal C female habitus, dorsal D same, ventral E same, lateral. Scale bar equal for C-E. Abbreviations: A = atrium; CD = copulatory duct; CO = copulatory opening; F = fold; FD = fertilization duct; H = hood; PES = posterior epigynal sclerite; S = spermatheca; SB = spermathecal base; SH = spermathecal head; St = stalk.

Figure 5. Distribution records of species of Yunguirius gen. nov. in China 1 Y. duoge sp. nov. 2 Y. ornatus 3 Y. subterebratus 4 Y. terebratus 5 Y. xiangding sp. nov.