MISSING CAT

Neutered 2 year old male, mostly white with tortoiseshell across his head, back tail and hind legs. Wearing a silver reflective collar with fish shapes on it. Also has an ID barrel but he has lost the information in it. Likes to be stroked on his head and back, but if you stroke his belly he will bite. Very timid, jumps at the slightest noise.
We have just moved into the area and he has been missing for 6 days now.