The larvae feed on Brachypodium sylvaticum, Calamagrostis epigejos, Carex stricta, Deschampsia cespitosa and Festuca arundinacea. They mine the leaves of their host plant. The mine has the form of a descending and widening corridor. In the end, it has the form of an elongate blotch that may occupy the entire width of the leaf. The frass is deposited in elongate lumps in the centre of the mine. Larvae can be found from autumn to June. The species overwinters within the mine. They are dull grey green with a pale brown head.
- "Elachista (Aphelosetia) bisulcella (Duponchel, 1843)". 2.6. Fauna Europaea. April 9, 2013. Retrieved May 13, 2013.
- "Elachista bisulcella". UK Moths. Retrieved September 23, 2011.
- "Elachista bisulcella (Duponchel, 1843)". Micro Lepidoptera.nl. Archived from the original on February 12, 2011. Retrieved September 23, 2011.
- "Elachista bisulcella (Duponchel, 1843)". Bladmineerders.nl. Retrieved September 23, 2011.
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