It looks to me like a ladybird larvae in which case it isn't attacking its feeding on greenfly so don't kill it.

Cammomile, I bow to you knowledge but the leaves on the Kilmarnock are being eaten by something.

It certainly looks like a ladybird larva, Treetop, so something else must be eating the Kilmarnock.

It's likely to be rust on the Willow. The are susceptible to this.

IT IS LADYBIRD LARVA.

They're all over my car - I guess they're feasting on the honeydew from the council's sycamore tree.

Thanks for your answers folks, much appreciated.