Only current reference book in the U.S. for all families and species of grasshoppers, katydids, and crickets of a state; also useful in Great Lakes region. Colour images of 137 species with fully illustrated keys to families and species. Text covers general biology of families and species, habitats, food, and state distribution. Chapter on species conservation, also extensive reference section, glossary, and index. Particular interest to professional entomologists; natural resource, field and conservation biologists; extension and experiment station specialists; biologists at universities, high schools, nature centers, and museums. Semi-technical presentation makes it useful to amateur biologists as well.