Field guide to the Butterflies of Northwestern Europe, covers all 150 species. By providing both top and bottom views, one can now easily identify virtually every butterfly. Relevant information such as flight season and rarity are readily accessible; wherever possible, caterpillars and other field characteristics are shown. The somewhat harder categories, like blues and skippers, have separate overviews that clearly identify their characteristic differences.
This new edition has been brought up-to-date, and more photos have been added.