Trechus uygur ssp. uygur Deuve, 1993 .

(Fig. 5)

Trechus uygur Deuve, 1993: 3, figs. 1, 10, type locality: “ Chine, Xinjiang, route entre Narat et Kuytun, col à environs 40 km au nord-est de Narat”.

Type material: Paratypes: 2(1) ♂♂, 1♀, “ China, Xinjiang, road Narat-Kuytun, ca 40 km NE Narat, pass 3500 m, 16-18/ VII 1993 Jaroslav Turna leg.” (CBK); 2(1) ♂, same locality but “alpine region, J. Kaláb leg.” (CBK) .

Additional material examined: 77(6) ♂♂, 26♀♀, “ China, Xinjiang, upper Kash Valley, left bank of Artsitan- Gol River, N slope of Ulan-Gelik Pass, 43°30´00´´ N / 84°26´30´´ E— 43°29´30´´ N / 84°26´25´´ E, H= 3100–3450 m, 03.07.1999, Belousov I.A. & Kabak I.I. leg.” (IZAS, MPU, BMNH, SMNS, ZISP, ZSM, CAG, CAK, CBK, CDW, CJS) {Fig. 9: 8–9}; 7(3) ♂♂, 20♀♀, “ China, Xinjiang, crest of Arshan Mts, 4 km SE of Ulan-Gelik Pass, 43°27´05´´N / 84°28´37´´E, H= 3310 m, 14.07.2018, Kabak I.I. leg.” (IZAS, MPU, BMNH, ZISP, ZSM, CAG, CAK, CBK, CDW, CJS) {Fig. 9: 10 }.

Distribution. T. uygur ssp. uygur is known only from the eastern part of the Arshan mountains located between the Kash and Kunges valleys, Xinjiang, China (Fig. 9).

Bionomics. The species occurs in alpine meadows at elevations of 3100–3450 m. Similarly to other members of the uygur group, this species prefers humid stony biotopes near melting snow, but at higher population densities, it can be found far from snowfields under stones.