Elachista argentella (Clerck, 1759)
38.0040 (B&F: 610)
Elachista cygnipennella (Hübner, 1796)
Elachista cygnipennis (Haworth, 1828)
Elachista semialbella (Stephens, 1834)
Resident. Usually occurs in small numbers at mv light in a range of habitats in both vice-counties but can occasionally be common on the coast in the far east. Flies from mid April to mid August and larvae feed on cock's-foot and brome grasses (Pratt, 2011).