Red and black striped bug

Red and black striped bug

Observation - Red and black striped bug. Description: This amazing insect was feeding while sitting on gorse. It was about 2-2.5cm in length and had amazing long antennae that seemed out of proportion to its body length. Does anyone know what it is please?

This amazing insect was feeding while sitting on gorse. It was about 2-2.5cm in length and had amazing long antennae that seemed out of proportion to its body length.

Does anyone know what it is please?