Pseudoscorpion (book scorpion)

Often found indoors in homes, libraries, and storage areas, especially in dusty or humid spots where small prey is available.

A predator of tiny arthropods, including booklice, mites, and small insect larvae; it catches prey with its pincers.

Harmless arachnid with pincers but no tail or stinging venom. It may hitchhike on larger insects and shelters in crevices; young resemble adults and molt several times.

Does not bite or damage belongings. Beneficial indoors because it eats pests such as mites and booklice.