Yes, I've seen rare bios like this. The closer you get to the surface the easier the tiny blue areas are to see. Also easier to see on the dark side of the body where the blue area shows up better. Be prepared for a lot of searching before you see anything. It will also help if you know the type of terrain that this bio likes.
Let's just call it ...... a challenge. Most people will skip it and look for something else. The better explorers will persevere until they find the little blighters, spending hours, if not days searching. If you want a real challenge look for bark mould. The whole body will be blue, but you will search and search and not find anything.