Hylaeus (Hylaeus) oblitus (Warncke, 1972)
Hylaeus pusillus Morawitz, 1876: 272, Ƌ (holotype—Ƌ, Kazakhstan, Bairakum, Syr-Dar'ya River, ZISP) (nom. praeocc. nec Schenck, 1853).
Hylaeus albitarsis Morawitz, 1887 (nom. praeocc. nec Schenck, 1853): 226–227, ♀ (holotype—♀, “Oasis Nia” [West China], ZISP).— Syn. nov.
Prosopis oblita Warncke, 1972: 748, nom. nov. for Hylaeus pusillus Morawitz, 1876 .
Prosopis fuliginosus Warncke, 1972: 747, nom. nov. for Hylaeus albitarsis Morawitz, 1887 .— Syn. nov.
Hylaeus fuliginosus: Dathe 1986a: 284 .
Hylaeus oblitus: Dathe, 1986b: 36 .
Material examined. Mongolia. Uvs Aimag: 1 ♀, Ogotor-Khamryn-Daba Pass, 17.VII.1968, MK (ZISP); Khovd Aimag: 1 ♂, 12 km SW Altai, Bodonchin-Gol, 22.VII.1970, MK (ZISP); 1 ♀, 1 ♂, 20 km SE Altai, Elkhon, 27.VII.1970, EN (ZISP); 3 ♀, 3 ♂, 50 km SSW Uench, Utyn-Mod, 27.VI.1980, MK (ZISP); Zavkhan Aimag: 1 ♀, 30 km WNW Tes-somon, 3–4.VII.1968, MK (ZISP); Govi-Altai Aimag: 5 ♀, Shargyn-Gobi, 10 km E Bayan, 23.VIII.1967, VZ (ZISP); 1 ♂, 15 km WNW Dzakhoi 24–26.VIII.1970, EN (ZISP); 2 ♀, 2 ♂, 25 km S Altai, Elkhon, 22–23.VI.1980, MK (ZISP); Bayan-Khongor Aimag: 15 ♀, 2 ♂, Ekhin-Gol oasis, 11–14.VIII.1969, MK, KA (ZISP); 2 ♀, 31.VIII.1970, MK (ZISP); 8 ♀, 10 ♂, Talyn-Bilgekh-Bulak, 13 km E Tsagan-Bogdo-Ula, 16.VIII.1969, MK, KA, IK (ZISP); 1 ♀, 100 km S Shine-Dzhinst, 30.VIII.1970, MK (ZISP); 1 ♀, 50 km NNE Tsagar-Bogdo Mt., Ekhin-Gol, 1.IX.1970, MK (ZISP); 1 ♀, 10 km N Shara-Khulsny-Bulak stream, 3. IX.1 970, IK (ZISP); 1 ♀, Shara-Khulsin-Bulak, 4.IX.1970, EN (ZISP); Umnugovi Aimag: 1 ♀, Gobi-Gurvan-Saikhan Nature Park, 10.VII.2005, JH (OLBL).
Distribution in Mongolia. *Uvs Aimag, *Khovd Aimag, *Zavkhan Aimag, *Govi-Altai Aimag, *Bayan- Khongor Aimag, *Umnugovi Aimag (Fig. 3 h).
General distribution. * Mongolia, Kazakhstan, China (Xinjiang).
Remarks. The recent type comparison in conjunction with examination of extensive new material confirmed the conspecificity of both Morawitz taxa, as had already been suggested earlier (Dathe 1986a: 285). See also the discussion to Hylaeus kozlovi sp. n. above.—The record of H. pusillus for Mongolia (“Südöstl. Mongolei, Prshew.[alsky leg.]“, Morawitz 1880: 388) is incorrect, this territory actually belongs to China (Xinjiang) (see Kerzhner 1972: 93–94).