(Figs. 1, 4, 5)
Pompilus crassicornis Shuckard 1837 (Jan. 2): 63, Ψ (type locality: Great Britain).
Pompilus crassicornis Schiødte 1837 (Dec. 31): 335, Ψ (type locality: Denmark). Junior primary homonym of Pompilus crassicornis Shuckard 1837 according to Haupt 1941: 177.
Pompilus pectinipes var. campestris Wesmael 1851: 466, Ψ ♂ [lectotype—Ψ (designated by Wahis 1954: 93), Belgium]. Junior subjective synonym of Psammochares crassicornis (Shuckard 1837) according to Haupt 1941: 177.
Pompilus Dalbomi (!) Thomson 1870: 223 ("Temligen allmän" [Sweden]). Junior subjective synonym of Pompilus campestris Wesmael 1851 according to Kohl 1886: 324.
Pompiloides (!) rufibasis Banks 1911: 226, Ψ (holotype—Ψ, Ithaca, N. Y., 1– 7 July, Banks). Junior subjective synonym of Evagetes crassicornis crassicornis (Shuckard 1837) according to Evans 1950: 185.
Streptosella steyskali Dreisbach 1950: 571, figs. 1, 2, ♂ (holotype—♂, Deerfield Township, Lapeer Co., Mich., VII- 4-37, G. Steyskal [USA, Michigan]). Junior subjective synonym of Evagetes crassicornis crassicornis (Shuckard 1837) according to Evans 1951: 311.
Streptosella albertensis Dreisbach 1950: 572, figs. 3, 4, ♂ (holotype—♂, Bilby, Alberta, VII- 20-24, O. Bryant [Canada]). Junior subjective synonym of Evagetes crassicornis crassicornis (Shuckard 1837) according to Evans 1951: 311.
Streptosella stricklandi Dreisbach 1950: 574, figs. 5, 6, ♂ (holotype—♂, Tofield, Alberta, V- 22-23, E.H. Strickland [Canada]). Junior subjective synonym of Evagetes crassicornis crassicornis (Shuckard 1837) according to Evans 1951: 311.
Evagetes crassicornis: Wahis 1954: 93, Wolf 1972: 149, Tobias 1978: 136, Day 1979: 13, Wahis 1986: 26, Lelej 1995: 249, v.d. Smissen 2003: 80, Wahis & v.d. Smissen 2005: 86, Lelej 2005: 129, Wahis 2007.
Evagetes crassicornis crassicornis: Evans 1950: 184, 1951: 311; Wolf 1970: 64, 66, Ψ ♂; Krombein 1979: 1546; Finnamore 1997: 879.
Evagetes crassicornis subarcticus Wolf 1964: 322, ♂ non Ψ; 1970: 64, 66, ♂ non Ψ.
Material examined. Russia. Amurskaya Prov.: 1 Ψ, Klimoutzy, 29.VI. 1975; 1 Ψ, Semenovka, 6.VII. 1975; 3 Ψ, Natal'ino, 8–13.VII. 1975; 1 ď 2 Ψ, Saskal, 12–13.VIII. 1982; 4 Ψ, 40 km NNW Svobodnyi, 15.VIII. 1982. Sakhalin: 1 Ψ, Piltun Bay, 4.VIII. 2001; 1 Ψ, Moskalvo, 13.VIII. 2001; 2 Ψ, Val, 28.VII. 2002. Chukotka: 1 Ψ, Omolon River, 180 km S Omolon, 23.VII. 1976. Magadan Prov.: 2 Ψ, Seimchan, 24.VII. 1975; 1 Ψ, Kolyma River, 12.VII. 1981; 1 Ψ, Khatyngah River, 18–19.VII. 1981; 2 Ψ, Vetrennyi, 20.VII. 1987. Yakutia: 1 Ψ, Pokrovsk, 21.VII. 1986; 1 Ψ, Yakutsk, 22.VII. 1986. Chita Prov.: 2 Ψ, Gazimur River, 13–16.VII. 1977; 1 ď 2 Ψ, Chita, 28.VII. 1984; 1 ď, 20 km SSE Krasnokamensk, 6.VIII. 2007. Buryatia: 3 Ψ, Borzya, 8–9.VII. 1977; 1 Ψ, Baikal Lake, Boyarskiy, 7.VIII. 1977; 11 Ψ, Gusinoye Lake, 6–7.VIII. 1984; 1 ď, Selenga River, Naushki, 30.VII. 2007. Irkutsk Prov.: 2 ď 3 Ψ, Angarsk, 19.VI– 11.VII, 19.IX. 1983; 1 ď, 1 Ψ, the same place, 27.VII.1988, 8.VII. 1994; 3 Ψ, 15 km E Ust-Orda, 3–4.VIII. 1994; 1 ď, the same place, 17.VI. 2000; 1 Ψ, 10 km E Baikalsk, 13.VIII. 1994 [IBSS]. Leningrad Prov.: 1 ď, "Terijoki" [Zelenogorsk, near St. Petersburg], (F. Morawitz) [ZIN]. Pskov Prov.: 1 ď 1 Ψ, "Glebova gorka, 8–9.VII. 1861 (A. Morawitz)" [ZIN]. Ukraine: 1 ď, Kiev, 7.VI. 1979 (A. Lelej) [IBSS]. Georgia: 1 ď, 20 km NE Adigeni, 13.VI. 1982 (E. Budris) [IBSS]. Kazakhstan: 1 Ψ, East-Kazakhstan Prov., 25 km NE Alekseyevka, 25.VII. 1986 (V. Kazenas) [IBSS]. USA: 2 Ψ, Alaska, Mission Creek, 61.56944 °N, 159.1825 °W, 23.VIII. 1990 (D. Berman) [IBSS].
Distribution. Russia (Amurskaya Prov., Sakhalin, Chukotka, Magadan Prov., Yakutia, Chita Prov., Buryatia, Irkutsk Prov., north-west, center and south-east of European part) (Tobias 1978, Lelej 1995, Loktionov 2009), Ukraine (new record), Albania, Austria, Belgium, Czech Republic, Denmark, Great Britain, Finland, France, Germany, Greece, Italy, Luxembourg, Norway, Poland, Sweden, Switzerland, the Netherlands (v.d. Smissen 2003, Wahis 2007), Ireland, Morocco, Spain, Turkey (v.d. Smissen, 2003), Belarus, Bulgaria, Romania, Portugal, Slovakia (Wahis 2007), Georgia (new record), Mongolia (Wolf 1981), Kazakhstan (new record), Kyrgyzstan (Wolf 1998). In North America occurs from Yukon, Northwest Terr., Quebec, and Nova Scotia in the North to Washington, North Dakota, Michigan, and Pennsylvania in the South (Krombein 1979, Finnamore 1997), Alaska (new record).
Hosts. Arachnospila (Ammosphex) anceps (Wesmael 1851), Arachnospila (Ammosphex) consobrina (Dahlbom 1843), Arachnospila (Anoplochares) minutula (Dahlbom 1842), and probably Arachnospila (Ammosphex) trivialis (Dahlbom 1843) and Anoplius (Anoplius) nigerrimus (Scopoli 1763) (v.d. Smissen 2003).