The only comprehensive guide to insects of the Pacific Northwest, this handy reference is perfect for hikers, fishers, and naturalists. With coverage from southwestern British Columbia to northern California, from the coast to the high desert, it describes more than 450 species of common, easily visible insects and some noninsect invertebrates, including beetles, butterflies and moths, dragonflies, grasshoppers, crickets, cicadas, flies, bees, wasps, ants, spiders, millipedes, snails, and slugs. The more than 600 superb color photographs, helpful visual keys, and clear color-coded layout will make this field guide an invaluable resource for nature lovers throughout the region.