Favonius saphirinus is a butterfly in the family Lycaenidae. It is found in the Russian Far East, north-eastern China, Korea and Japan.
Subspecies Favonius saphirinus saphirinus (Amur, Ussuri) Favonius saphirinus graeseri Dantchenko, 2000 (southern Ussuri) Favonius saphirinus jezonicus Murayama, 1953 (Japan: Hokkaido) Favonius saphirinus nipponicus Murayama, 1953 (Japan: Honshu) Favonius saphirinus okadai Koiwaya, 1996 (Sichuan) Favonius saphirinus oseanus Murayama, 1953 (Japan: Honshu) Favonius saphirinus pedius (Leech, 1894) (Sichuan)
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