Please help identify a strange (to me) caterpillar. It is about 25mm 
long, dirty grey in colour, hairy with long hairs, not furry, two 
antennae(?) at one end, and spiky tail(?) at the other end. I found it 
this morning on the jamb of the front door in my rural village street.

I have looked in the insect field guide without success. It most closely 
resembles the caterpillar of the garden tiger (Arctia caja), but with 
fewer and longer hairs and with a tail and antennae.

I have it safe in a plastic bag for now, but it will need to be released 
soon, so please reply quickly!

Hugh

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Hugh Newbury

www.evershot-weather.org