tedster - 12:27 am on Jan 11, 2012 (gmt 0)
I agree that seeing a referer is a surprise - although I haven't specifically looked for it in quite a while. Given the time/date stamps this looks like an automated version of googlebot that crawls very much like a human user would.
Does this user-agent/IP request a new HTML page? If so, does it include a referer in that request?