This field guide sets a new standard for insect identification, making it an indispensable resource to naturalists, educators, gardeners, and others. Engaging and accessible, Pacific Northwest Insects features detailed species accounts, each with a vivid photograph of a living adult, along with information for distinguishing similar species, allowing the reader to identify more than 3,000 species found from southern British Columbia to northern California and as far east as Montana. The book features most of the commonly encountered insects, spiders, scorpions, millipedes, centipedes, and kin in the Pacific Northwest, as well as representatives of an amazing variety of unusual and interesting insects living in the area. After more than a decade of research, reviewing hundreds of thousands of museum specimens and scouring the technical entomological literature, Merrill Peterson has brought together for the first time in a single volume a wealth of information on the region's insect life. Detailed identifying information on over 3,000 species Complete description of 1,200 species Organized by insect group for easy identification Up-to-date taxonomy 1,725 color photos, 50 line drawings, and 2 maps

Beautifully illustrated and approachable, this is the only California-specific, statewide book devoted to all groups of insects. Completely revised for the first time in over 40 years, Field Guide to California Insects now includes over 600 insect species, each beautifully illustrated with color photographs. Engaging accounts focus on distinguishing features, remarkable aspects of biology, and geographical distribution in the state. An accessible and compact introduction to identifying, understanding, and appreciating these often unfamiliar and fascinating creatures, this guide covers insects that readers are likely to encounter in homes and natural areas, cities and suburbs, rural lands and wilderness. It also addresses exotic and invasive species and their impact on native plants and animals. Field Guide to California Insects remains the definitive portable reference and a captivating read for beginners as well as avid naturalists.

FULL COLOR and Enlarged Edition - California has more than twenty-five native species, natural hybrids, and varieties of oaks (Quercus species). The form of these oaks ranges from large trees, up to about 25 m tall, to shrubs no taller than about 1.5 m. California's native oaks include representatives of three oak subgroups or subgenera (Table 1). Hybridization only occurs between oaks in the same subgroup. In addition, some insects, pathogens, and other agents may selectively colonize or damage oaks in certain subgroups.