Xistra emeiensis ( Zheng, 1998 ) Zhang & Deng & Li & Lin, 2022

Zhang, Rong-Jiao, Deng, Wei-An, Li, Jie-Juan & Lin, Li-Liang, 2022, Pygmy grasshoppers of the genus Xistra Bolívar, 1887 (Orthoptera: Tetrigidae: Metrodorinae), Zootaxa 5162 (2), pp. 183-197 : 194

4. Xistra emeiensis ( Zheng, 1998) , comb. nov.

Systolederus emeiensis Zheng, 1998 : in Liang & Zheng, 1998: 101 [description] (holotype — ♀, China: Sichuan prov., Emeishan County, Hongchunping, in IZSNU, examined); Zheng, 2005b: 118; Cao & Zheng, 2011: 738; Zheng, 2013: 3; Deng, 2016: 106; Deng, Lu, Zhao & Wu, 2019: 496 .

Xistra yaanensis Zheng, 2009: 298 [description] (holotype — ♂, China: Sichuan prov., Yaan City, in IZSNU, examined); Li, Deng, Zheng, Lin & Lu, 2014: 214; Deng, 2016: 119; syn. nov.

Type material examined. Systolederus emeiensis : holotype, ♀, China: Sichuan prov., Emeishan County, Hongchunping , 01 September 1980, in IZSNU ( Fig. 6c ) . Xistra yaanensis : holotype, ♂, China: Sichuan prov., Yaan City , 28 July 2004, in IZSNU ( Fig. 6d ) ; paratypes, 1 ♂, the same data as holotype, IZSNU .

Notes. Systolederus emeiensis is not a Systolederus species because eyes not draw to each other in front giving the triangular shape to vertex; vertex well depressed, lateral margins of vertex turned backward and elevated up to upper margin of eyes. It belongs to Xistra Bolívar, 1817 . We have examined the type specimens of Systolederus emeiensis and Xistra yaanensis , and found that structures and coloration of the body are the same in both taxa. Therefore, Xistra yaanensis is here considered a synonym of of Systolederus emeiensis [= Xistra emeiensis ( Zheng, 1998) , comb. nov.]

Figures

FIGURE 6A–F. The holotype of Bannatettix ruiliensis (Zheng, 1993), Xistra klinnema (Zheng & Zeng, 2011), Systolederus emeiensis (Zheng, 1998), Xistra yaanensis (Zheng, 2009), Systolederus guangxiensis (Zheng, 1998), Xistra longzhouensis (Zheng & Jiang, 1998). A—Bannatettix ruiliensis (female); B—Xistra klinnema (female); C—Systolederus emeiensis (female); D—Xistra yaanensis (male); E—Systolederus guangxiensis (male); F—Xistra longzhouensis (male). (A–F photo: Weian Deng).