Booklouse

High humidity indoor environments like pantries, bookshelves, under wallpaper, or in damp basements.

Microscopic mold, fungi, algae, and starchy materials like book glue or cereal grains.

They are wingless and fast-running insects that thrive in humidity over 60%. They reproduce through parthenogenesis (females can reproduce without males) and undergo simple metamorphosis.

They do not bite humans or pets and do not spread disease. They are primarily a nuisance and a sign of high moisture; however, they can contaminate food and damage delicate items like old books.