This is the first-ever book dedicated solely to Yorkshire's butterflies, their distribution and lifestyle. It is a report on an eight-year distribution study intended to provide baseline information against which future assessments of the state of our butterflies can be made. The writers have tried to summarise our current knowledge, bringing together a mass of information previously scattered through 200+ years of entomological literature and reports. It is packed with unusual photographs and contains specially designed distribution maps which put Yorkshire butterflies into a national and regional context. It has also been designed to be of use to those working in the conservation field and to people involved in writing BAPs and other conservation management plans. Contents are divided into: Background Articles; Current Species; Rare and Extinct Species. Although not intended as an ID book, a brief ID section is included for all current species as a guide to the inexperienced.