Zygaena dorycnii is a species of moth in the family Zygaenidae. It is found in Ukraine, Russia, Turkey and Armenia. It has spots and a red belt, which does not reach all round the abdomen as in the otherwise similar peucedani, not being continued on the underside. — In senescens Stgr. [ now Zygaena ephialtes ssp. senescens Staudinger, 1887 ], from Tauria, the anterior basal spot of the forewing, the hindwing and the abdominal belt are dark rose-colour, the other spots of the forewing being white, with a yellow tint. The larvae feed on Lotus corniculatus.