First pic is an adult. Second is a blurred one of larve. Be careful, the larva is easily mistaken for a ladybird larva. (Which I'm looking for to pic for comparison.)
when I was at school, if you found one of those, you had to take it straight round to the village police station, we had a poster on the wall telling us so. Why have you got some? Do you have a vendetta against the British Potato Council? Or do you get a reward for every one handed in??
The same rules apply today, RT. And these pics were taken in a Belgium allotment. Belgium isn't as keen as the UK with regard to these pests.