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).