Hylaeus (Hylaeus) przewalskyi Morawitz, 1887
Hylaeus przewalskyi Morawitz, 1887: 227 –229, ♀, Ƌ (lectotype—Ƌ, designated by Dathe 1986: 283, Oasis Nia [China, Kunlunshan], ZISP); Dathe 1986a: 283.
Material examined. Mongolia. Khovd Aimag: 1 ♀, 1 ♂, 20 km SE Altai, Elkhon, 27.VII.1970, EN (ZISP); 1 ♀, 5 ♂, 28.VII.1970, MK; 1 ♂, 15 km S Bulgan, 29.VII.1970, IK (ZISP); 1 ♂, 12 km SW Altai, Bodonchin-Gol, 21.VI.1980, GM (ZISP); 11 ♀, 23 ♂, 50 km SSW Uench, Utyn-Mod, 27.VI.1980, MK (ZISP); Govi-Altai Aimag: 10 ♀, Shargyn-Gobi, 10 km E Bayan, 23.VIII.1967, VZ (ZISP); 1 ♀, 25 km WSW Bur-Nur, 17. VII.1 970, VZ (ZISP); 7 ♀, 15 km WNW Dzakhoi, 24–26.VIII.1970, EN (ZISP); Bayan-Khongor Aimag: 1 ♂, 15 km S Shine- Dzhinst, Dzhinst-Ula, 10.VIII.1969, MK (ZISP); 5 ♀, 3 ♂, Talyn-Bilgekh-Bulak, 13 km E Tsagan-Bogdo-Ula, 16.VIII.1969, MK, KA (ZISP); 1 ♀, Shara-Khulsin-Bulak, 4.IX.1970, EN (ZISP); 126 ♀, 53 ♂, Ekhin-Gol oasis, 11–14.VIII.1969, VZ, MK, KA, IK (ZISP); Umnugovi Aimag: 3 ♂, Naran Bulag, 1407 m, 17–20.VII.1994, JC (SDEI); Dornod Aimag: 1 ♀, Tamsag-Bulak, 24.VII.1976, MK (ZISP).
Distribution in Mongolia. *Khovd Aimag, Govi-Altai Aimag, Bayan-Khongor Aimag, *Umnugovi Aimag, Dundgovi Aimag, *Dornod Aimag (Fig. 4 c).
General distribution. China, Mongolia, Central Asia.