Oligolophus tridens (C.L. Koch, 1836)

Farzalieva & Esyunin 2000: 188, figs 27–34, 96.

Tchemeris et al. 1999: 196, figs 24–31.

Material examined. RUSSIA: Altai Republic: Ust’-Koksa District: 1 ♂, 4 ♀ (ISEA O.001.0254), 11 ♂, 20 ♀ (PCLT), Katunsky Biosphere Reserve, upper reaches of the Katun’ River, left bank of Zaichikha River near its mouth, [49°37’08.3”N, 85°43’03.8”E], 1302 m a.s.l., 15–26.VIII.2020 .

Habitats. Mesophytic meadows and clearings in birch or mixed forests (Tchemeris et al. 1999); grass-green moss spruce forests (in Katunsky Biosphere Reserve).

Distribution. Europe to Siberia (up to Yenisei River) (Tchemeris et al. 1999).