Pagastia (P.) aff. lanceolata (Tokunaga, 1936)

Material. 1 larva, Central Asia, Tajikistan, Gorno-Badakhshan Autonomous Region, Shughnon District, Tuzumtaikul River within the Jelondy village, about 400 m above the mouth, alt. 3560 m above sea level, 01.VII.2016, N 37°34’26.56”, E 72°34’48.29”, leg. D. Palatov ; 2 larvae, the same region, Rushanskiy District, spring in front of the mouth of the Bartang River, near the bridge to Rushan Town. 03.VII.2016, alt. 2025 m above sea level, N 37°55.493’, E 71°36.183’, leg. D. Palatov.

Remarks. The larvae collected in mountain river and spring of Pamir do not differ in morological character- istics from P. (P.) lanceolata (Tokunaga), but molecular genetic data allow us to assert about an independent and possibly new species of Pagastia (Fig. 16).

Ecology. Larvae were collected from stones and bowlders covered with moss in mountain river, located at an altitude of 3569 m, at a flow rate of 0.3–1.0 m/s, with water temperature 5°C and in spring from stones covered with algae, at an altitude of 2025 m, at a flow rate of 0.2–0.5 m /s.

Distribution. Known only from one river and spring in Pamir Mountains (Tajikistan) (Figs. 14–15).