Now re-published with additional and updated text, the third edition of the renowned guide to British macro lepidoptera contains two new plates of additional species plus a further group of colour plates comparing critical species in a new style to aid identification of groups of moths. The last twenty-five years since the publication of the first edition have seen a steady increase in our knowledge of British macro moths, their distribution, history and habits, and this new edition will bring to both the new and experienced student of the group, the latest overview of current status of resident, immigrant and historical records. Since the publication of the second edition very significant changes in behaviour and distribution, perhaps associated with climate change, have made it desirable to update much of the basic text.