Eudonia lacustrata

Eudonia lacustrata is a species of moth of the family Crambidae described by Georg Wolfgang Franz Panzer in 1804. It is found in Europe, north-west Africa, Asia from Turkey, Iran and Syria to Siberia and the western part of China (Hunan). The subspecies E. lacustrata persica is found in Iran and Armenia.

The wingspan is 16–18 mm. The forewings are grey whitish, sometimes mixed with light ochreous-yellowish, sprinkled with black. Pale central fascia and black-brown antemedial and subterminal cross-lines edged with yellowish white.

The moth flies from May to August depending on the location. The larvae feed on various mosses.