I also came across this one
psycheclone ip = 208.66.195.2
If I am not mistaken occ, these spam bots originate from many different ips so the move would be to block the user agent instead of the ip. I think it is done this way but correct me if I am wrong.
RewriteCond %{HTTP_USER_AGENT} ^psycheclone [OR]
Also, I am updating my list and am blocking all ips from israel, china, russia, and turkey. I will be happy to share once I am done with it, should be a few hours as it is a lot of cutting and pasting.