The Larch gall moth (Cydia millenniana) is a moth of the Tortricidae family. It is found from Europe to Russia and the Korean Peninsula.This species is often confused with Cydia zebeana. Due to this, it is difficult to be sure about the data published on the biology of both species. According to Whitebread (1975) and Booij and Diakonoff (1983), larvae of Cydia milleniana form galls, while larvae of Cydia zebeana do not.The wingspan is 13–18 mm.