Isauria dilucidella is a species of moth in the family Pyralidae. It was described by Philogène Auguste Joseph Duponchel in 1836. It is found in most of Europe (except Portugal, Ireland, Great Britain, Fennoscandia, the Benelux, Poland and the Baltic region),Fauna Europaea Algeria, the United Arab Emirates, Syria, Lebanon, the Palestinian territories, Iraq, Turkmenistan, Mongolia,New data for Pyraloidea from Fuerteventura (Canary Islands, Spain) including a species new to Science (Lepidoptera: Pyraloidea) as well as Georgia, Kazakhstan, Armenia, Turkey, Iran and Afghanistan.
The wingspan is 19–24 mm.
The larvae feed on Lotus corniculatus and Astragalus monspessulanus.
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