The Psocopterous insect is a small, wingless insect that can be found in many different parts of the world. Some synonyms for the Psocopterous insect include book lice, barklice, and sofa lice. These insects are often mistaken for their close relatives, the lice, but they are actually a completely different species. Book lice, as their name suggests, are usually found in dusty, moldy books and can cause damage to paper and book bindings. Barklice, on the other hand, are typically found on trees and shrubs and often form large colonies. Sofa lice are commonly found on furniture and can be a nuisance to humans, but they do not pose any health risks.