Here's another image from the Alps - the Susa Valley area. I think the flower is Orange Mullein, but the caterpillar was a complete mystery.
The original text of this blog - headed 'A Mystery Caterpillar' suggested that "Perhaps that guru of all things lepidopteran, Weird Darren, will come to my aid. What is it, Darren?"
Within the hour, Darren had indeed correctly identified the little blighter, brightly coloured so as to remind anything that may consider eating it that it tastes most unpleasant. But not before George - London Backpacker - had provided the excellent and informative link to the UK moths website.
So, well done and thank you, George and Darren, and I will have another mystery item for you tomorrow.