Lymantriidae is a family of moths that includes some of the most destructive pests known to man. These insects are also known by several other names, including tussock moths, ermine moths, and vapourer moths. The term 'lymantriidae' is used to describe a group of hairy moths that have distinctive tussocks of hair on their bodies. The moths in this family are widespread throughout the world and can cause extensive damage to trees and crops. The use of synonyms for 'lymantriidae' can help to identify different species of moths within this family and aid in pest control efforts.