Elachista fulgens

Elachista fulgens is a moth of the family Elachistidae. It is found in Italy, Germany, the Netherlands and Japan (Kyûsyû, Ryûkyû; Honsyû).

The length of the forewings is 2.4 - 2.7 mm for males and 2.6 - 3.5 mm for females.

The larvae feed on Carex acutiformis, Carex elata and Carex riparia. They mine the leaves of their host plant.

Taxonomy
Some authors list Elachista arnoldi as a synonym of Elachista fulgens.