(Figs 18, 47, 48, 66, 82, 104, 110c)
Sphecodes scabricollis Wesmael 1835: 429, ♂ (type locality: Belgium); Quest 2009: 206; Proshchalykin & Quest 2009: 245; Proshchalykin 2012: 457.
Sphecodes perversus Ritsema 1879: 56, ♀ (type locality: Nederland).
Sphecodes japonicus Cockerell 1911: 638, ♂ (holotype –♂, « Type No. 134222 », American Museum of Natural History, New York, USA). Synonymized by Mitai & Tadauchi 2013: 61.
Sphecodes sibiricus Cockerell, 1924: 528, ♀ (holotype –♀, “Kongaus, Siberia” [Russia, Primorskiy Terr., Anisimovka], 9.VIII. 1923, T. Cockerell leg., NMNH). Syn. nov.
Sphecodes utinamius Tsuneki 1983: 12, Figs 1–4, ♂ (holotype –♂, Japan: “Fukui Pref., Hatogayu—Mt. Akaysagi, 15.IX. 1973, K. Tsuneki leg.”, MNHAH). Synonymized by Mitai & Tadauchi 2013: 61.
Sphecodes asakura Tsuneki 1983: 16, Figs 12–16, ♂ (holotype –♂, Japan: Fukui Pref., Ohno City, 27.VIII. 1959, K. Tsuneki leg.; MNHAH). Synonymized by Tsuneki 1983: 68 under Sphecodes japonicus Cockerell 1911.
Sphecodes hatogayuus Tsuneki 1983: 18, Figs 17–19, 203 – 210, ♂, ♀ (holotype –♂, Japan: “Fukui Pref., Hatogayu, 31.VIII. 1973, K. Tsuneki leg.”, MNHAH). Synonymized by Tsuneki 1983: 69 under Sphecodes japonicus Cockerell 1911.
Sphecodes taicho Tsuneki 1983: 70, Figs 269, 270, ♀ (holotype –♀, Japan: “Fukui Pref., Fukui City, Sandyuhassha, 14.IX. 1958, K. Tsuneki leg.”, MNHAH). Synonymized by Mitai & Tadauchi 2013: 61.
Sphecodes daisi Tsuneki 1983: 70, Figs 271, 272, ♀ (holotype –♀, Japan: “Fukui Pref., Fukui City, Sandyuhassha, 14.IX. 1958, K. Tsuneki leg.”, MNHAH). Synonymized by Mitai & Tadauchi 2013: 61.
Material examined. Primorskiy Terr.: 1 ♂, Lazovskiy Nature Reserve, 11.IX. 2003, M. Quest (M. Schwarz det. 2007); 1 ♀, Ioldzykhe River, 25.VI. 1928, Formozov; 1 ♀, Spassk, 19.VII. 1961, A. Zhelkhovtzev; 1 ♂, 14.IX. 1984; 1 ♀, 16-17.VII. 1998; 1 ♀, 1.VII. 2013, SB; 2 ♂, Lazovskiy Nature Reserve, 23.IX. 1974, Berezantzev; 1 ♂, Khasan, 25.VIII. 1977, AL; 1 ♂, 26.VIII. 1988, SB; 1 ♀, Lazo, 17.VIII. 1978, DK; 1 ♂, 6 km S Tikhookeanskoe, 26.VIII. 1978, AL; 1 ♀, Kievka, 8.VII. 1979; 1 ♀, 1 ♂, 13.VIII. 1982, TR; 1.IX. 1981, on Inula sp., YP; 1 ♀, Benevskoe, 2.VIII. 1979, TR; 1 ♂, 28 km NE Preobrazhenie, 7.IX. 1979, TR; 2 ♂, Novokachalinsk, 14- 18.VIII. 1981, YP; 2 ♀, 30 km S Lazo, Sandogou, 8.IX. 1982, TR; 2 ♂, 28 km NE Preobrazheniya, 7.IX. 1979, TR; 1 ♂, Tekhmenevo, 3.VIII. 1982, AL; 1 ♀, Ryazanovka, 14-18.VII. 1982, Shalagina; 1 ♀, Gornotayezhnoe, 24.VII. 1983, AL; 1 ♂, Sedanka River, 11.IX. 1983, AL; 1 ♀, Evseevka, 28.VI. 1985, AL; 1 ♀, 7 km W Zanadvorovka, 6.VIII. 1985, SB; 1 ♂, 15 km S Lazo, 18.VII. 1986, A. Antropov; 1 ♀, Ilistaya River, Nikolayevka, 24.VII. 1986, AL; 1 ♀, Ussuriyskiy Nature Reserve, 18.VII. 1992, AL; 1 ♀, 1 ♂, 35 km NE Spassk, 13.VII. 1993, SB; 1 ♀, 7 km E Khasan, 25.VII. 1977, AL; 1 ♂, Vladivostok, 30.VIII. 1985, 1 ♀, 17.IX. 1998, AL; 2 ♂, 4.IX. 2003, SB; 2 ♂, Lazovskiy Nature Reserve, Korpad’, 7-11.IX. 2009, YS; 1 ♀, 20 km NW Spassk, 6.VII. 2012, SB; 1 ♀, 10 km ENE Pos’et, Gvozdevo, 3.VIII. 2013, SB; Jewish AP: 2 ♀, 8 ♂, Zabelovskoe Lake, 3-4.IX. 2005, V. Kuznetsov; Amurskaya Prov.: 1 ♂, Blagoveshchensk, 17.VIII. 1982, AL; Khabarovsk Terr.: 4 ♂, 15 km SE Yelabuga, 4.VIII. 1975, AL; 1 ♂, Komsomolsk on Amur, Silinskii park, 7.IX. 1994, D. Gritskevich; 1 ♀, 23.VI. 2006, MP; 1 ♀, Evoron Lake, 13.VII. 2006, MP; Sakhalin: 2 ♀, 2 ♂, Yuzhno-Sakhalinsk, 5-7.VIII. 1978, AK, AL; 1 ♀, 15 km NE Yuzhno-Sakhalinsk, 12.VII. 1981, YP; Kuril Islands. Kunashir, 8 ♀, Alekhino, 29.VI– 25.VII. 1962, G. Krivolutskaya, Konovalova, Safronova; 1 ♂, Mendeleevo, 12.IX. 1975, B. Korotyaev; 1 ♀, 17 th kilometer, 3- 4.X. 1982, 1 ♂, Rosinka, 5.IX. 1982, A. Basarukin; 1 ♀, Dubovoe, 20-22.VII. 2011, MP, VL; 1 ♀, Tret’yakovo, 26- 30.VII. 2011, MP, VL.
Distribution. Russia: Primorskiy Terr. (Quest 2009), *Jewish AP, *Amurskaya Prov., *Khabarovsk Terr., *Sakhalin, *Kuril Islands (Kunashir), European part (Osytshnjuk et al. 1978); Japan: Hokkaido, Honshu, Shikoku, Kyushu (Mitai & Tadauchi 2013), Europe (north to Finland), Turkey.
Remarks. Cockerell (1924) noted that Sphecodes sibiricus very close to S. japonicus (= S. scabricolis), but slightly differs from it by size of stigma and form of fore wing marginal cell. He noted also similarity S. sibiricus with S. scabricolis, but wrote: “the strongly brown wings separate it from this”. We studied material of S. scabricolis from Europe, Central Asia, and Siberia and recorded variablity of wing characteristic noted by Cockerell. The photos of holotype of S. sibiricus indicate identity with S. scabricolis. In this special case, the Type Specimen Database of the NMNH (http://collections.nmnh.si.edu/search/ento/) proved to be extremely useful.