Hylaeus (Hylaeus) angustatus (Schenck, 1861)

Prosopis angustata Schenck, 1861: 315, 321, Ƌ (type locality: Weilburg, Germany). Hylaeus subexcisus Förster, 1871: 938, ♀, Ƌ (type locality: France).

Hylaeus subtilis Förster, 1871: 1039, ♀ (type locality: Chur, Switzerland).

Hylaeus subpunctatus Förster, 1871: 1054, ♀ (type locality: Paris, France).

Hylaeus submarginatus Thomson, 1872: 130, ♀, Ƌ (type locality: Sweden). Prosopis punctifrons Pérez, 1903: CCXXXVI, ♀ (type locality: Marseille, France). Hylaeus pauperculus Cockerell, 1931: 536, Ƌ, ♀ (type locality: Asni, Ifrane, Morocco). Prosopis curviscapa Benoist, 1960: 63, ♀, Ƌ (Gotland, Sweden).

Material examined. Mongolia. Khovd Aimag: 1 ♀, 25 km N Bulgan, Ulyastain-Gol, 31.VII.1970, MK (ZISP); 3 ♀, 25 km S Altai, Elkhon, 22–23.VI.1980, MK (ZISP); Bayan-Khongor Aimag: 1 ♂, 3 km E Erdene-Tsogt, Khangai Ridge, 24.VI.2012, AT (IBSS).

Distribution in Mongolia. *Khovd Aimag, *Bayan-Khongor Aimag (Fig. 3 a).

General distribution. Nearly throughout Europe, from Mediterranean coast to 60° north; * Mongolia, Russia (European part, Siberia), Caucasus, Morocco, Lebanon, Asia Minor, Iran.