Scythris petrella is a moth of the family Scythrididae. It is found on the Canary Islands.
The wingspan is 8–9 mm. The forewings are greyish fuscous, mottled with ashy white. The base is sprinkled with ashy white scales. The hindwings are grey.
The larvae feed on Rocelia fusiformis."Scythris Hübner, " at Markku Savela's Lepidoptera and Some Other Life Forms.
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