Colletes impunctatus Nylander 1852: 249 ( type locality: North Sweden); Kuhlmann & Proshchalykin 2011: 16.
Material examined. Altai Republic: 3 ♀, 11 ♂, Dzhulukul Lake [ 89 ° 42 'E 50 ° 29 'N], 2250m, 7.VIII. 1987, YAP ( ZISP); 1 ♂, [ 87 ° 55 'E 50 ° 13 'N], 10–15 km SW Kurai, 12.VII. 2007, SAB ( ZISP); Khakassia Republic: 1 ♂, Shira [ 90 ° 22 'E 54 ° 48 'N], 21–24.VI. 2011, K. Tomkovich ( IBSS); 1 ♂, 12 km E Shira, Shira Lake [ 90 °08'E 54 ° 30 'N], 1.VII. 2014, ASL, MYP, VML ( IBSS); 1 ♀, 6 ♂, 40 km NW Shira, Chernoe Lake [ 89 ° 24 'E 54 ° 40 'N], 3– 5.VII. 2014, ASL, MYP, VML ( IBSS); Tyva Republic: 6 ♀, 22 ♂, Tore-Khol Lake [ 95 °08'E 50 °04'N], 30.VI – 3.VII. 2013, MYP, VML ( IBSS); 3 ♀, 18 ♂, 11–12.VII. 2014, ASL, MYP, VML ( IBSS); 1 ♀, 30 km W Erzin, Yamalyg [ 94 ° 44 'E 50 ° 15 'N], 4.VII. 2013, MYP, VML ( IBSS); 1 ♀, 25 km SE Erzin, Tes-Khem River [ 94 ° 44 'E 50 ° 15 'N], 5.VII. 2013, MYP, VML ( IBSS); 7 ♂, 14–15.VII. 2014, ASL, MYP, VML ( IBSS); 1 ♀, 6 ♂, 13 km SW Samagaltai, Dyttyg-Khem River [ 94 ° 53 'E 50 ° 31 'N], 8–11.VII. 2013, MYP, VML ( IBSS); 6 ♀, 7 ♂, 17.VII. 2014, ASL, MYP, VML ( IBSS); 27 ♂, Shuurmak, Shuurmak River [ 95 ° 19 'E 50 ° 38 'N], 11–12.VII. 2013, MYP, VML ( IBSS); 1 ♂, 16 km N Boyarovka [ 95 ° 22 'E 51 ° 40 'N], 15.VII. 2013, MYP, VML ( IBSS); 7 ♀, 263 ♂, 31 km NEE Erzin, Erzin River [ 95 ° 33 'E 50 ° 21 'N], 16, 18.VII. 2014, ASL, MYP, VML ( IBSS); 3 ♂, 13 km NEE Samagaltai, Kaldar-Khamar Pass [ 95 ° 11 'E 50 ° 38 'N], 19.VII. 2014, ASL, MYP, VML ( IBSS); 2 ♂, 34 km W Balgazyn, Chagytai Lake [ 94 ° 41 'E 51 °01'N], 20.VII. 2014, ASL, MYP, VML ( IBSS).
Distribution in Siberia. Altaisky Terr., *Altai Republic, *Khakassia Republic, Tyva Republic, Irkutsk Prov., Yakutia, Zabaikalskiy Terr.
General distribution. Russia ( Table 2), Norway, Sweden, Netherlands, France, Denmark, Germany, Switzerland, Austria, Finland, Poland, Czech Republic, Italy, Kazakhstan, Mongolia.