''Phaedon laevigatus'', the watercress leaf beetle, is a species of leaf beetle in the family

Chrysomelidae The insects of the beetle family Chrysomelidae are commonly known as leaf beetles, and include over 37,000 (and probably at least 50,000) species in more than 2,500 genera, making up one of the largest and most commonly encountered of all beetle ...

. It is found in Europe and Northern Asia (excluding China) and North America.

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