pseudoscorpions

There are species which live inside old books protecting them by eating booklice and dustmites

Tiny pseudoscorpions (about 4mm) live inside old books, effectively protecting them by eating booklice and dustmites Pseudoscorpions are generally beneficial to humans since they prey on clothes moth larvae, carpet beetle larvae, booklice, ants, mites, and small flies. They are tiny and inoffensive, and are rarely seen due to their size. There are more than […]