Hylaeus (Patagiata) nigrocuneatus Cockerell 1924

(Figs 4 f, 9c–d)

Hylaeus nigrocuneatus Cockerell 1924a: 277, Ƥ, 3 (holotype—3, “Kudia-River, Siberia” [Primorskiy Terr., Russia], VI.1923, leg. W. Cockerell, T. Cockerell).

Hylaeus nigrocuneatus var. rufipennis Cockerell 1924a: 278, Ƥ, 3 (holotype—3, “Okeanskaja, Siberia” [Vladivostok, Primorskiy Terr., Russia], VI.1923, leg. W. Cockerell, T. Cockerell). Syn. nov.

Hylaeus brevicuneatus Cockerell 1924b: 579, Ƥ (holotype—Ƥ, “Kongaus, Siberia” [Anisimovka, Primorskiy Terr., Russia], VIII.1923, leg. T. Cockerell). Syn. nov.

Hylaeus lavrushini Cockerell 1924b: 579, Ƥ (holotype—Ƥ, “Kongaus, Siberia” [Anisimovka, Primorskiy Terr., Russia], VIII.1923, leg. T. Cockerell). Syn. nov.

Hylaeus paradifformis Ikudome 1989: 224 –233, Ƥ, 3 (holotype—Ƥ, Ashoro, Hokkaido, Japan, 14.VIII.1953, leg. Y. Maeta). Syn. nov.

Hylaeus nigricuneatus (!): Dathe 1986b: 33.

Hylaeus nigricuneatus var. rufipennis (!): Dathe 1986b: 35.

Prosopis paradifformis: Osytshnjuk & Romankova 1995: 486 .

Hylaeus paradifformis: Davydova 2002: 94; Davydova & Pesenko 2002: 583; Proshchalykin 2003a: 26; 2004: 3; 2007a: 882; 2007b: 89; 2008: 6; 2010: 509; Proshchalykin et al. 2004: 157; Ignatenko & Proshchalykin 2005: 244; Proshchalykin & Quest 2009: 239.

Material examined: 57 Ƥ, 67 3. Russia. Irkutsk Prov. (15 km E Ust'-Ordynskiy); Zabaikalskiy Terr. (15 km SE Chita, 12 km N Darasun); Yakutia (Buotama River, Iengra); Amurskaya Prov. (Kundur, Svobodhyi, Natal’ino, 20 km SW Fevralsk, Talakan); Jewish AP (Kuldur, Pashkovo, Izvestkovyi); Primorskiy Terr. (Vladivostok, Anisimovka, Kamenushka, 40 km SW Chuguevka, Barabash-Levada, Lazovskiy Nature Reserve, Gornotaezhnoe, Spassk, Novokachalinsk, Krounovka); Khabarovsk Terr. (Bychikha, Komsomolsk on Amur, Boktor); Sakhalin (Moskalvo, Novoaleksandrovsk).

Distribution in Russia. *Irkutsk Prov., Zabaikalskiy Terr., Yakutia; Amurskaya Prov., Jewish AP, Primorskiy Terr., Khabarovsk Terr., Sakhalin.

General distribution. Japan (Hokkaido, Honshu, Kyushu), China (Shanghai, Jilin, Shandong), Asian part of Russia.

Remarks. The listed synonymies resulted from the systematic review of Cockerell's types from the Far East region, which had not previously been undertaken. In this special case, the Type Specimen Database of the NMNH proved to be extremely useful.