Identification

Could be mistaken for Opostega salaciella.  An obvious difference is that Elachista argentella has no eye-caps.

Life cycle

Larvae present Autumn-May.  Adults April-August.

Larval foodplants

Mines many grasses of the family Poaceae.

History

The first for Dumfries & Galloway was found at Abbey Burn Foot, Kirkcudbrightshire, on 30th May 1965 by E. C. Pelham-Clinton, while the first for Dumfriesshire was found at Locharbriggs on 19th May 1982 by Sir Arthur Duncan, specimen at National Museums Scotland, with the Wigtownshire first being found at The Forest in late June 1989 by E. F. Hancock.