Ceutorhynchus psoropygus Ceutorhynchus psoropygus Iablokov-Khnzorian , 1971 on Erysimum, Syrenia host plants Brassicaceae, oligophagous Erysimum siliculosum; Syrenia cana. distribution within Europe (PESI, 2020). references Yunakov, Nazarenko, Filimonov & Volovnik (2018a).