It doesn’t matter where you start. Just start.
Marie Herberstein, Head of the Department of Biological Sciences at Macquarie University in New South Wales, doesn't fully exclude the possibility that this could be a spider, though she writes, "I have never heard of any spider to crawl or exist under the skin or integument of any other creature (there are no parasites amongst spiders)." But she also suspects it may be a different animal. She told us, "My initial reaction is that this is a mite (also 8-legged) rather than a spider, and mites are renown[ed] for this type of behaviour, such as in scabies. Let's see what the identification brings."
We mite win on Thursday but then again we mite not!
On the other hand... I am *never* going to Guyana (click to show/hide)(clicky for link)
Andrij. I pronounce you Complete and Utter GIT