In this book internationally known experts provide a comprehensive view of current knowledge of social insect biology including much previously unpublished information. Particular emphasis is given to the relationships between social insects and humans; sections are devoted to economically important social insects, pollination, foraging, and the role of insects in ecosystems and agroecosystems. The authors also discuss communication, behavior and caste within insect colonies. A special section focuses on the neurobiology of social insects. A series of papers considers the presocial insects, which live in family groups but without caste differences. Also well represented are the fields of sociobiology and the origins and evolution of social behavior. The book will be valuable to agricultural scientists as well as to entomologists, sociobiologists, ecologists, ethologists, and natural historians. Endocrinologists and neurobiologists will also find important new material.

In this extensive update of his definitive reference, Charles D. Michener reveals a diverse fauna that numbers more than 17,000 species and ranges from the common honeybee to rare bees that feed on the pollen of a single type of plant. With many new facts, reclassifications, and revisions, the second edition of The Bees of the World provides the most comprehensive treatment of the 1,200 genera and subgenera of the Apiformes. Included are hundreds of updated citations to work published since the appearance of the first edition and a new set of plates of fossil bees.

The book begins with extensive introductory sections that include bee evolution, classification of the various bee families, the coevolution of bees and flowering plants, nesting behavior, differences between solitary and social bees, and the anatomy of these amazing insects. Drawing on modern studies and evidence from the fossil record, Michener reveals what the ancestral bee -- the protobee -- might have looked like. He also cites the major literature on bee biology and describes the need for further research on the systematics and natural history of bees, including their importance as pollinators of crops and natural vegetation. The greater part of the work consists of an unprecedented treatment of bee systematics, with keys for identification to the subgenus level. For each genus and subgenus, Michener includes a brief natural history describing geographical range, number of species, and noteworthy information pertaining to nesting or floral biology.

The book is beautifully illustrated with more than 500 drawings and photographs that depict behavior, detailed morphology, and ecology. Accented with color plates ofselect bees, The Bees of the World will continue to be the world's best reference on these diverse insects.

Although the honeybee is without doubt man's favorite social insect, and the most studied by him, there are twenty thousand other species of bees, many of which are social. This book is the first to offer a systematic account of social behavior in the entire super family Apoidea. Of all the social insects, the various species of bees exhibit perhaps the broadest spectrum of social behavior, including intermediate stages which are scarce or totally extinct in other groups; in this respect the bees are particularly appropriate subjects for evolutionary study. With the aid of more than 200 illustrations, Charles Michener characterizes and describes all levels of social organization in the bees-from simple aggregations of solitary nests to elaborate, eusocial colonies. He reviews the entire repertoire of social behavior in bees and gives detailed attention to mechanisms of communication, division of labor, determination of sex and caste, maintenance and control of nest conditions, and organization of defense. In a major chapter the evolutionary context of the bee societies is extensively explored; the author examines the selective advantages and disadvantages entailed in evolving nonreproductive castes, the problem of multiple, independent origins of eusociaI behavior, and the question of "direction" in the evolution of social behavior. The final section is an account of the life history and behavioral attributes of each of the groups of social bees.