Kessleria diabolica is a moth of the family Yponomeutidae. It is found in central Spain.Fauna Europaea

The length of the forewings is 6.3 mm. Adults have been recorded in July.Huemer, P. & G. Tarmann (1991): Westpaläarktische Gespinstmotten der Gattung Kessleria Nowicki: Taxonomie, Ökologie, Verbreitung. — Mitteilungen der Münchner Entomologischen Gesellschaft 81: 5-110

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