Prionyx viduatus argentatus (Mocsáry 1883)
Enodia argentata Mocsáry 1883: 36, junior secondary homonym of Sphex argentatus Fabricius 1787 . Syntypes: Ƥ, southern Russia or Caucasus: no specific locality (TMB).
Sphex mocsaryi Kohl 1885a: 187, replacement name for Enodia argentata .
Sphex gobiensis Tsuneki 1971a: 142 . Holotype (examined): Ƥ, Mongolia: Middle Gobi Aymag: Delgerhangay (TMB), examined. New synonymy.
Prionyx viduatus mocsaryi: Kazenas 1978: 44 .
Prionyx viduatus argentatus: Kazenas 1998: 127; 2002: 31.
Material examined: 78 Ƥ, 69 3 from Russia, Kazakhstan, Turkmenistan, Uzbekistan, Tajikistan, Afghanistan, and Mongolia.
Distribution: Spain, Czech Republic, Slovakia, Belarus, Turkey, Russia (Samara, Rostov, Ulyanovsk, Orenburg regions, Northern Caucasus), Turkmenistan, Tajikistan, Kazakhstan, China, Mongolia, Libya.