Sathytes chayuensis Yin & Shen, 2020

Yin, Zi-Wei, 2022, The Batrisini of Tibet: unveiling an enigmatic ant-loving beetle diversity at Earth’s “ Third Pole ” (Coleoptera, Staphylinidae, Pselaphinae), Zootaxa 5111 (1), pp. 1-211 : 120

Sathytes chayuensis Yin & Shen, 2020

( Figs 83B , 100D, E )

Chinese common name: 察øḛà甲

Sathytes chayuensis Yin & Shen, 2020: 42 . Type locality: China, Xizang, Chayu (= Zayü) Co., Xiachayu To., Talin Bridge; 28.53340539° N, 96.97800188° E; alt. 1541 m.

Distribution. Zayü County, Tibet, SW China ( Figs 83B , 100D, E ).

Remarks. Sathytes chayuensis was described based on three males and one female collected at Xiachayu, Zayü. This species morphologically resembles S. aequalis and S. virupaksa described in this paper in the distinctly elongate antennomeres 11, similar forms of antennomeres 9 and placements of the apophyses on them. It differs from both species by the shorter and denser setae of the head, and the apical margin of the aedeagus is convex on the left side (also see ‘Comparative notes’ under S. aequalis and S. virupaksa ).

Figures

FIGURE 83. Distribution of Tibetan Batrisini. A. Sathytes aequalis sp. nov. (circle), S. alpicola Yin & Shen (triangle) and S. asura sp. nov. (square). B. S. caichenyangi sp. nov. (circle), S. chayuensis Yin & Shen (triangle) and S. dawai sp. nov. (square). C. S. duojii sp. nov. (circle), S. laticornis sp. nov. (triangle) and S. linzhiensis Yin & Shen (square).

FIGURE 100. Environment of and collecting sites at Nyingchi area (A–E) and Chamdo (ăƀ) (F). A. 80K. B. 96K. C–E. Xiachayu (T察ø). F. pass of Jueba Mountain (ẅ巴山口), Markam (Ẽ康). Photo Credit: A by Zhong Peng; B by Xiao-Bin Song; F by Wen-Xuan Bi.