Hylaeus (Hylaeus) sibiricus (Strand 1909)

(Figs 4 b, 6g –h)

Prosopis sibirica Strand 1909: 74 –75, 3 (holotype—3, “Siberia, Smolenschina” [near Irkutsk, Irkutsk Prov., Russia] [ZMB]). Prosopis sjoestedti Alfken 1936: 9 –10, Ƥ, 3 (holotype—Ƥ, South Kansu, China [NRS]). Synonymized by Dathe 1986a: 287. Hylaeus sibiricus: Cockerell 1937: 5; Dathe 1986a: 287; 1986b: 37; Quest 2009: 134; Proshchalykin & Quest 2009: 239.? Hylaeus communis excurrens Cockerell 1937: 5 –6, Ƥ (holotype—Ƥ, “Siberia: Smolenschia, near Irkutsk” [Irkutsk Prov., Rus-

sia], 17.VIII, leg. T. Cockerell [American Museum of Natural History, New York]); Dathe 1986b: 38.

Material examined: 14 Ƥ, 5 3. Russia. Tyva Republic (Uvs-Nuur Lake, 20 km SW Erzina, Tore-Khol Lake, 20 km NW Chadan, 30 km Shagonar); Irkutsk Prov. (15 km E Ust'-Ordynskiy); Buryatia (Dzhida); Jewish AP (Radde); Primorskiy Terr. (Lazovskiy Nature Reserve, Khankaiskiy Nature Reserve).

Distribution in Russia. *Tyva Republic, Irkutsk Prov., *Buryatia, *Jewish AP, Primorskiy Terr. General distribution. China (Jilin, Gansu), Mongolia, Asian part of Russia.