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Elachista trifasciata (Wollaston, 1879) on St Helena Island (Lepidoptera: Elachistidae: Elachistinae)
Abstract
The authors give a redescription of the recently rediscovered Elachista trifasciata on St Helena Island and provide information about the habitat and biology of this endemic species. For conservation reasons, the area with the food plant of the monophagous larva, Carex dianae, should be extended in the Central Ridge area. Elachista trifasciata is considered to be sensitive to climate changes.