UK caterpillar id?

[Alan Prignoli]

I don't have a photo but this caterpillar (found in London) was pretty
distinctive...

2 inches in length, body greenish coloured with a dense pattern of tiny
dots.
Light coloured, featureless, rounded triangular 'face mask'
Thin, upward pointing, cylindrical, light blue 'tail', over orange
'buttocks'.



Many thanks in advance...



 
 ------------------------------------------------------------ 

   For subscription and related information about LEPS-L visit:

   http://www.peabody.yale.edu/other/lepsl