Hawkmoth caterpillar with turquoise horn

Hawkmoth caterpillar with turquoise horn

Observation - Hawkmoth caterpillar with turquoise horn - UK and Ireland. Description: Found near wild privet, but it doesn't seem to be a privet hawkmoth. The spike/horn on the rear end looks like some sort of hawkmoth? No stripes or patterns visible though. Perhaps a hummingbird hawkmoth - or a very pale lime hawkmoth? It is about 3cm

Found near wild privet, but it doesn't seem to be a privet hawkmoth. The spike/horn on the rear end looks like some sort of hawkmoth? No stripes or patterns visible though. Perhaps a hummingbird hawkmoth - or a very pale lime hawkmoth? It is about 3cm long, 1cm thick.