The larvae feed on Juncus compressus, Juncus gerardii and Scirpus maritimus. They mine the leaves of their host plant. The mine starts as a narrow corridor halfway down the leaf and ascends towards the tip. It then doubles and descends to about the starting point, gradually widening. The frass is deposited in the oldest part of the mine. Pupation takes place outside of the mine in a pupa in a loose spinning. They are pale greenish yellow with a pale yellow head. Larvae can be found from early March to early May.
- "Elachista (Elachista) scirpi Stainton, 1887". 2.6.2. Fauna Europaea. August 29, 2013. Retrieved November 9, 2013.
- "microlepidoptera.nl". Archived from the original on 2011-05-01. Retrieved 2011-09-08.
- "Elachista scirpi Stainton, 1887". Bladmineerders.nl. Archived from the original on September 26, 2012. Retrieved September 8, 2011.
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