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Elachistinae
grass-miner moths
Elachistinae is a subfamily of small moths in the family Elachistidae, superfamily Gelechioidea. The subfamily contains approximately 805 valid species placed in 10 genera, with the genus Elachista being the most diverse. Species are predominantly leaf miners, with larvae feeding on monocotyledonous plants, especially sedges (Cyperaceae) and grasses (Poaceae). The subfamily has a worldwide distribution with significant diversity in the Holarctic region. Many species show narrow host plant associations and some exhibit vicariant distribution patterns.