Anyone know what these caterpillars are?

[Theaspidistraiswilting]

Not really pets but does anyone know what these are?

There are lots of them and have eaten a whole bleeding heart plant!

We are in the North East if that helps

Any lepidopterologists about on the boards today?

Now there's a sentence we don't often get to type!

cabbage white?

www.naturespot.org.uk/taxonomy/term/19327

Im in the north east and have these. If you look closely they wrap themselves in plant leaves in a cocoon. Its fasinating. My plants all have curled over leaves. I just let them do there thing and hopefully butterflies appear😉 i dont no what they are either.

I think it's a Sawfly larvae, possibly the Solomon's Seal sawfly.
Do they have tiny black speckles down the sides?