EdisterBot hit one of my test sites today. It didn't even bother to fetch robots.txt. It went straight to the index page. Curious though where you are getting your crawl lists from (whois?). The test site has no inbound links and the only visits it gets is from bots scanning IP blocks. It only gets around ten hits a day.
Also, your bot is sending a HTTP_REFERER header, but it's blank.