Hylaeus (Hylaeus) fedtschenkoi (Cockerell, 1906)
Hylaeus frontalis Morawitz, 1876: 275, ♀, Ƌ (lectotype—♀, designated by Warncke 1981: 149, Samarkand, Uzbekistan, ZMMU) (nom. praeocc., nec Fabricius, 1804).
Prosopis fedtschenkoi Cockerell, 1906: 165, nom. nov. for Hylaeus frontalis Morawitz, 1876 .
Material examined. Mongolia. Bayan-Khongor Aimag: 1 ♀, Ekhin-Gol oasis, 11–14.VIII.1969, MK (ZISP). Distribution in Mongolia. *Bayan-Khongor Aimag (Fig. 3 i).
General distribution. * Mongolia, Central Asia.