This field guide. covering the butterflies of the eastern United States to a western boundary running from the eastern Dakotas to east Texas, identifies butterflies in their habitat, and includes information on unique field marks and flight patterns, ranges, seasonal abundance, and food plants. It is beautifully illustrated with 71 colour plates, with photographs of all the butterflies native to the eastern United States. The guide will allow butterfly watchers to identify butterflies in the field without the need to collect them. This guide, beginning a series of field guides, is a big improvement over the Audobon and Peterson guides, and one of the finest, most reliable, and useful field guides to any subject.