The message k
from Sacha contains these words:

And here's another ID question - walking the dogs on Dartmoor this afternoon
(near the Commandment Stones, for those that know the area) we saw a very
large caterpillar that was quite a bright green with pairs of yellow spots
regularly spaced on its body. It was about 3 or 4" long and rather fat. I
can't say any more than that because at that point another dog appeared and
ours had to be restrained rather hastily!
The area is grassy with heather, gorse and a very small yellow flowered
something growing there. There are a few trees around but very few.

I can't find anything which matches the description in the Diamond
Handguide - and that covers mainland Europe too.

--
Rusty
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