Identity help, please!

[clueless]

Apologies in advance from a Newby!

I have found in my garden some caterpillars.
I have no way of sending a pic. The critters are 40 mm long, 4 mm dia, hairless and hornless. They are black, with five 1 mm wide bright
yellow longitudinal stripes. Between the lower 2 stripes on each side, also below the lowest stripe, the black is in the form of small spots
on a grey background. Over the whole length of the body are fine transverse bands of white, 2 to 3 mm apart, which make it look as if the
body has been tied with cotton.
I have spent a long time on the web trying to identify them, with little success. The nearest example I have found is Berger's Clouded Yellow.
I live in North East Kent, on chalky soil, 1Km from the beach and 500 m from open farmland.

I'll be grateful for any help! TIA!

[Millar153]

Hi,
Is this your suspect? It's a Buff-tip moth caterpillar.
http://www.ukmoths.org.uk/show.php?id=987
Hope this helps
Sam