Time could be better spent marketing yourself instead of checking out where the bots are coming from. Work on perfecting your keywords and descriptions...Google and bots like content. Work on your art, shooting, editing photos. Increase your chances of being seen by adding more work.
Think about it...the best sellers or anyone making steady sales, isn't checking out their stats. They aren't really accurate anyway as it may be a bot or it may be a prospective buyer or a fellow artist.
During the time you check out your stats everyday, think of how many Tweets you could have posted. I used to waste time checking them but soon discovered it was pointless. My biggest problem is making it a daily habit of posting on SM every day. I haven't posted anything since Friday but I have been editing like a madwoman so I can build up my image quantities. I only need to add about 2000 more before I'll be where I want lol.