Elachista triatomea

Elachista triatomea is a moth of the family Elachistidae found in Europe.

Description
The wingspan is 8 –. Head white.

Adults are on wing from June to July.

The larvae mine the blades of various grasses of Festuca species, including sheep's fescue (Festuca ovina), red fescue (Festuca rubra) and fine-leaf sheep fescue (Festuca tenuifolia).

Distribution
It is found in Ireland, Great Britain, Fennoscandia, Denmark, Germany, Austria, the Czech Republic, Hungary and Romania.