The clearest and sharpest recognition guide to over 500 butterfly and moth species from around the world.  Authoritative text, crystal-clear photography, and a systematic approach make this the most comprehensive and concise pocket guide to the butterflies and moths of the world. Packed with more than 600 full-color photographs of over 500 species, this handy reference book is designed to cut through the process of identification and help you to recognize a species quickly an