Caryocolum tetrameris (Meyrick, 1926) (Figs 13–15, 20, 22)

Records. HUEMER et al. (2017, as Caryocolum sp.).

Material examined. RUSSIA: ALTAI REPUBLIC: Dzhazator valley, near Tara river, 56 km SE of Belyashi, 49°39′45″N, 88°14′28″E, 2300 m a.s.l., 25.–26.vii.2017, 69 7 ♀♀ (gen. prep. 19983, 19984, 19985, J. Šumpich) (Barcode NMPC-LEP-0367), J. Šumpich leg.(NMPC, ZMKU, ZMUC); Kosh-Agach district, 17 km NNE of Kokorya, Chikhacheva Mountains Range, Talduair Mountains, Sajlyugem valley, 2.200 m a.s.l., 50°01′15.37″N, 89°13′43.65″E, 30.vii.–2.viii.2016, 2 (gen.slide GEL 1263, P. Huemer) (Barcode TLMF Lep 20363, TLMF Lep 20364), P. Huemer & B. Wiesmair leg. (TLMF); Kosh-Agach district, 10 km NE of Kosh-Agach, Kurai Mountains Range, Tabozhok valley, 2.100 m a.s.l., 50°04′32.36″N, 88°43′41.83″E, 2.–4.viii.2016, 3 (gen. slide GEL 1264, P. Huemer) (Barcode TLMF Lep 20380), P. Huemer & B. Wiesmair leg. (TLMF); Ulagan district, 10 km NE Aktash village, Kurai Mts range, between Korumdyajry and Yarlyamry rivers, 2150 m a.s.l., 50°19′N, 87°43′E, 6.–8.viii.2016, 9 1 ♀, P. Huemer & B. Wiesmair leg.(TLMF);Aktash vill., 50°19′12″N; 87°36′00″E, grassy steppe, rocks, 1400 m, 11.vii.2014, 1 (Barcode NMPC-LEP-0361), J. Šumpich leg. (NMPC); the same data but 21.vi.2015, 2 2 ♀♀ (gen. slide 280/17; 286/ 17♀; 171/18, O. Bidzilya) (NMPC); Belyashi (Dzhazator) env. (25 km NW), confluence of Argut and Karagem rivers, 49°51′56″N, 87°10′22″E, rocky steppe, 1400 m, 1 8 ♀♀, J. Šumpich leg. (NMPC); Kosh-Agach Distr., Kurai env. (6.5 km SW), 50°10′35″N; 87°53′55″E, grassy steppe, 1550 m, 30.vii.2017, 2 ♀♀, J. Šumpich leg. (NMPC).

Molecular data. Genetically variable species, clustering into two BINS: BIN BOLD: ADE0005 (n = 4, 4 public,

4 from the Altai); BOLD: ADE0329 (n = 1, from the Altai). The average intraspecific divergence of the barcode region in BIN BOLD: ADE0005 is 0.24% (maximum 0.32%) whereas the p-distance to the second cluster is 3.56%. C. sciurella (Walsingham, [1908]) occurring on the Canary Islands and Madeira, is the nearest neighbour with 6.8% p-distance.

Distribution. Turkey, Iran and central Asia (HUEMER 1988), Russia: the Altai Republic. New species for Russia.

Remark. Specimens of both genetic clusters occur sympatrically and fully agree in external and genitalia morphology, thus clearly indicating conspecificity.

Material from the Altai Mts. is tentatively identified as C. tetrameris, a species described from Turkey which may include cryptic diversity. However, lack of material and absence of comparative genetic data do not allow a final taxonomic assessment for the time being.