Elachista bisulcella is a moth of the family Elachistidae that is found in Europe.
The wingspan is 8–.[1] The head is dark grey, face whitish. Forewings are dark fuscous, blackish-sprinkled ; a hardlycurved whitish central fascia, edged with yellow posteriorly, broader towards dorsum ; tips of apical cilia whitish. Hindwings are dark grey.The larva is grey-green; head pale brown ; 2 with two brown spots.[2]
Adults are on wing at the end of June and again in August in two generations per year.[3]
The larvae feed on false-brome (Brachypodium sylvaticum), wood small-reed (Calamagrostis epigejos), upright sedge (Carex stricta), tufted hair-grass (Deschampsia cespitosa) and tall fescue (Festuca arundinacea). They mine the leaves of their host plant. [4] Larvae can be found from autumn to June. The species overwinters within the mine.
Found in Europe from Fennoscandia to the Pyrenees, Italy and Romania and from Ireland to Poland.