Destructive Beetles?

Destructive Beetles?

Observation - Destructive Beetles? - UK and Ireland. Description: Seen loads of these around today, in two places in Cheshire. Destructive little monsters. Mostly been munching on Hazel, but also seen them on oak and ash. (In the same proximity). They have a blueish sheen when seen in the light. Can anybody tell us abou

Seen loads of these around today, in two places in Cheshire. Destructive little monsters. Mostly been munching on Hazel, but also seen them on oak and ash. (In the same proximity). They have a blueish sheen when seen in the light. Can anybody tell us about them?