Hylaeus (Hylaeus) paulus Bridwell, 1919

Hylaeus paulus Bridwell, 1919: 154, ♀ (type locality: Karuizawa, Honshu, Japan, USNM No.50731); Proshchalykin & Dathe 2012: 16, 2016: 310. In Dathe (1986a): 289, recorded partly as Hylaeus gracilicornis (Morawitz) . Hylaeus lepidulus Cockerell, 1924a: 282 –283, Ƌ (type locality: Kudia-River, Siberia [Primorskiy Territory, Russia], VI.1923, leg. T. Cockerell, NHML 17.a.2.); Dathe et al. 1996: 157.

Prosopis gracilicornis auctorum, nec Morawitz, 1867 (Dathe et al. 1996).

Material examined. Mongolia. Zavkhan Aimag: 6 ♀, 2 ♂, 40 km SW Ulyasutai, 18.VII.2005, JH (OLBL); Uvurkhangai Aimag: 1 ♀, 137 km SE Arbai-Khere, 1250 m, 26.VII.2004, MKA (OLBL); Tuv Aimag: 1 ♀, 1 ♂, Songino, 24 km SW Ulaanbaator, 1300 m, 7.VII.1966, Z. Kaszab (SDEI); Dornod Aimag: 1 ♀, 3 ♂, 33 km SE Khalkh-Gol, Khalkin-Gol, 31.VII.1976, MK (ZISP).

Distribution in Mongolia. * Zavkhan Aimag, *Uvurkhangai Aimag, *Tuv Aimag, *Dornod Aimag (Fig. 4 c). General distribution. Eurosiberian species; Central Europe, Russia, Mongolia, China and Japan.