Hylaeus (Hylaeus) angustatus (Schenck, 1861)
Prosopis angustata Schenck, 1861: 315, 321, ♂ (syntypes: ♂♂, Weilburg, Germany, SGNF; verified).
Hylaeus subexcisus Förster, 1871: 938, ♀, ♂ (type locality: France, MNHN).
Hylaeus subtilis Förster, 1871: 1039, ♀ (type locality: Chur, Switzerland, MNHN).
Hylaeus subpunctatus Förster, 1871: 1054, ♀ (type locality: Paris, France, MNHN).
Hylaeus submarginatus Thomson, 1872: 130, ♀, ♂ (type locality: Sweden, MZLU).
Prosopis punctifrons Pérez, 1903: CCXXXVI, ♀ (type locality: Marseille, France, MNHN).
Hylaeus pauperculus Cockerell, 1931: 536, ♂, ♀ (type locality: Asni; Ifrane, Morocco, BMNH).
Prosopis curviscapa Benoist, 1960: 63, ♀, ♂ (type locality: Gotland, Sweden, MNHN).
Material examined. CHINA. 1 ♂, Suleikhe River, neаr Sасhzhоu, Gаshunskоe Gоbi, 7.VIII.1895, V. Rоbоrоvskу, P. Kozlov ; 1 ♀, Bugas, near Khami, 2.IX.1895, V. Roborovsky, P. Kozlov.
Distribution. Eurоpe, Nоrth Afriса (Mоrоссо), Azerbаijаn, Тurkeу, Lebаnоn, Irаn, Mоngоliа, Russiа, * Chinа (Gаnsu, Хinjiаng).