Bloomsbury 
Concise Butterfly and Moth Guide [PDF ebook] 

This practical pocket field guide, published in association with the Wildlife Trusts, includes 150 butterfly and moth species from Britain and the near Continent. Each species account contains accurate artworks that show details to help readers differentiate between male and female butterflies, moths and caterpillars of varying species. A concise written account outlines further essential information, such as size, description, habitat, flight times, distribution, foodplants and habits. The easy-to-follow layouts and illustrations aid quick identification, and make this book an indispensable reference in the field as well as at home. It is compact enough to fit in the pocket, yet filled with essential information for nature enthusiasts.