Udea mandronalis is a moth in the family Crambidae. It is found in Sri Lanka.
Adults are dull ochraceous with a marginal pale line on the wings. The interior and exterior lines and reniform mark on the forewings are cinereous, diffuse and indistinct. The hindwings are whitish, with a broad cinereous border.List of the specimens of lepidopterous insects in the collection of the British Museum
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