www.ukbutterflies.co.uk

Anyone any ideas on this spiky-haired beast?:

Lasiocampidae, perhaps Oak Eggar.

I notice that the larva is on Common Nettle ,a known foodplant of Jersey Tiger .................just a thought ! Allan.W.

Thanks, both. Still deliberating to be honest.

Half grown Oak Eggar for me. Despite the name they're quite polyphagous and hibernate as a half grown Larvae.

Think you may have it there, Paul. Many thanks.