Encyclopedia of Insects and Spiders describes and illustrates fifty-one groups of insects and spiders. In addition, two articles introduce the basic biology and natural history of insects and spiders, respectively. Their form and natural history are more varied than any other group of animals alive today. The beauty of butterflies, moths, and dragonflies is in marked contrast to the alien-looking forms of some bugs, scorpions, and spiders. There are hoverflies that look like bees, ants that look like wasps, and even nonpoisonous butterflies that deter predators by resembling unrelated butterflies, which are, in fact, poisonous to their predators. This book provides a fascinating exploration into this remarkable group of animals.