The Families of Malesian Moths and Butterflies provides a compendium of detailed information on the rich diversity of moths and butterflies of Malesia. It includes not only a key to the families (and some subfamilies) and field hints for the identification of larval stages, but also deals with their biology, biogeography, phylogeny and classification, and provides guidance for their collection and study. Familie that are reported or suspected to occur in Malesia are described in some depth, with a reference section intended to include as comprehensive a list as possible of the key works to the fauna.