This guide is an updated sequel to the ground-breaking 1991 guide by the same two authors.
This new work treats in depth all 273 species recorded in the region
Features more than 700 excellent color photographs, most of living butterflies photographed in the field
Provides more than 300 regional larval host plant records
Plus, color images of common nectar sources, caterpillars and habitats, range maps for all but the most common and widespread species, and an illustrated comparison guide to the difficult-to-identify duskywings.