Lygomusotima stria is a moth in the family Crambidae. It was described by Maria Alma Solis and Shen-Horn Yen in 2004. It is found from Singapore and Thailand to Pulo Laut (an island near Borneo).

The length of the forewings is 5–7.1 mm

The larvae feed on Lygodium microphyllum.Species of Lygomusotima new genus and Neomusotima Yoshiyasu (Lepidoptera: Crambidae) from Australia and Southeastern Asia feeding on Lygodium microphyllum (Schizaeaceae)

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