Large green larvae/caterpillar Glasgow area

[DanSim]

Hi, I found this on a large kaffir Lilly in my garden. It’s at least 80mm long along with another shorter one seen in the attatchments. I am not sure what this is? Haven’t seen anything like this before, I would be grateful for any help!

[Allan.W.]

Hello Dansim ,
Your caterpillar looks like a Peppered Moth (Biston Betularia) to me .
Allan.W.