Presents the results of an intensive butterfly survey undertaken in Cheshire (including Wirral) since 1990. During this period the author has compiled and interpreted a database of 70,000 butterfly sightings observed by more than 200 recorders. Distribution maps, flight period histograms, colour photographs and information on status, habitat and behaviour are provided for all 33 species recorded during the survey period. Additional chapters cover historical records and principal habitats.