Caterpillar for ID, please

Caterpillar for ID, please

Observation - Caterpillar for ID, please - UK and Ireland. Description: Can anyone identify this caterpillar for me, please? Around 2.5cm long. Feeding on Stinging Nettles.

Can anyone identify this caterpillar for me, please? Around 2.5cm long. Feeding on Stinging Nettles.