Other common names include the deathwatch, common booklouse, and grain psocid. Miffy's namesakes include a new species of booklouse from Peru. Liposcelis decolor is a species of booklouse in the family Liposcelididae. Liposcelis bostrychophila is a species of booklouse in the family Liposcelididae. Pseudoscorpions love old dusty books where they can find their prey&colon; The booklouse.