Hylaeus (Hylaeus) tsingtauensis (Strand, 1915)

Prosopis tsingtauensis Strand, 1915: 62 –63, 1 ♀ (holotype—♀, China, Tsingtau [Dsingdao, Shandong Province], SDEI).

Hylaeus pallescens Cockerell, 1924a: 279 –280, ♀ (holotype—♀, “Okeanskaja, Siberia” [Vladivostok, Primorskiy Terr., Russia], VIII.1923, leg. T. Cockerell, USNM). Synonymised by Ikudome 2013: 4; Proshchalykin & Dathe 2012: 16; Proshchalykin 2014: 484; 2015: 7.

Hylaeus stentoriscapus Dathe, 1986a: 271 –273, ♀, Ƌ (holotype—Ƌ, “Uvs: Charchiraa uul, Ulaangom Umgebung [Mongolia, Uvs Aimag], 29.VII.1977 ”, ZNSH). Synonymized by Proshchalykin & Dathe 2012: 16.

Hylaeus tsingtauensis: Proshchalykin & Dathe 2016: 315 .

Material examined. Mongolia. Uvs Aimag: 2 ♂, Tarialan sum, 8, 24.VII.1988, MD, K. Seidelmann (SDEI); 8 ♀, 26 ♂, Tarialan, Kharkhiraa, 1, 25.VII.1989, K. Seidelmann (SDEI); Selenge Aimag: 1 ♂, Ero-Gol near Dulan- Khan, 4.VIII.1975, ES (ZISP); Tuv Aimag: 1 ♂, Ulaanbaatar, 26–30.VI.1994, JC (SDEI); 1 ♂, Ulaanbaatar, Tuulgol floodplain, 3.VIII.1986, MD (SDEI).

Distribution in Mongolia. Uvs Aimag, Selenge Aimag, *Tuv Aimag (Fig. 4 d).

General distribution. Mongolia, Asian part of Russia.