Kaufman Field Guide to Butterflies of North America - Jim P. Brock, Kenn Kaufman - Google Books

https://books.google.de/books?id=kxH-6rPPGpEC

The most user-friendly butterfly guide ever published, still handy and compact, now updated with the very latest information- Follows the latest classification, recognizing more than forty additional species- Includes four new color plates of…