I did get a shot of its front view, but it is far too ugly to show.
I didn't know it was a black vine weevil, and watched as it jumped off the leaf and into my flower beds. Its probably now laying hundreds of eggs ready to eat the roots of my new raised bed plants.
@ingajohansson Thank you Inga, I can't bring myself to kill anything, I would have scooped it up and put it on the waste ground across the road, hoping it didn't know the way back!