Hey, thanks for bumping this, Jurassic. I almost forgot to make my comment.
Anyone who hasn't taken the survey yet and still wants to, don't read any farther. I LOVE, I mean, L-O-V-E LOVE book scorpions/pseudoscorpions/chelifers. I have seen only two in my lifetime, once on our picnic table, and once my sister found one and brought it to me. I had NO IDEA they lived in beehives in mutualism symbiosis with honey bees,

and it makes me EXTREMELY SAD at the thought that treating for mites kills them.

Just more motivation to try and work towards keeping bees without treating. When I did some more looking at the book scorpions after the survey, I found this amazing article.
http://ujubee.com/?p=1104