When i was in the Black Mountains at the weekend i spotted what appeared to be a very large Caterpillar. I was at a fair altitude (1500ft approx on the flanks of Charwel Fan).

It was a good 4 inches long. Seemed to be fairly furry/hairy. Thickly black and orange striped along the length of the body.

Any of our Welsh locals know what it might have been?