Pyrausta porphyralis is a species of moth in the family Crambidae described by Michael Denis and Ignaz Schiffermüller in 1775. It is found in most of Europe (except Ireland, Great Britain, Portugal, Croatia, Greece and Ukraine)."Pyrausta porphyralis (Denis & Schiffermüller, 1775)". Fauna Europaea. Retrieved February 26, 2018.

The wingspan is 15–18 mm.Microlepidoptera.nl. Retrieved February 26, 2018.

The larvae have been recorded feeding on Mentha aquatica, Origanum and Helichrysum species.

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