Oidaematophorus constanti is a moth of the Pterophoridae family. It is found on Corsica and Sardinia and in Spain, France, Germany, the Czech Republic, Austria, Slovenia, Slovakia, Hungary, Romania and the Republic of Macedonia. The wingspan is about 28 millimetres (1.1 in). The larvae feed on Inula montana, Inula vaillantii, Inula hellenium, Inula helenioides, Inula oculus christi and Inula conyza.