The African continent has a rich fauna of insects, many of which are unstudied. This monograph treats one such group known as the small carpenter bees. Thirteen biological species in a new genus are described and a key for identification and details of their nests and natural enemies are given.

in collaboration with Bruce Cutler and Stefan Heimer The available information, personal observations, and study of one facet of the beauties of the tropical rain forest of Panama is gathered into a much needed volume which includes the physical, biological, and spider environment of Panama. The complete list of known Panama spiders with literature references and a key to the families and most genera provides the user with an up-to-date guide to this fauna. With over 350 illustrations, numerous charts, graphs, and tables, the coverage of this volume goes far beyond the geographical boundary of the study, making it useful to all students of spiders.

Provides information on status, habitat, identification, and conservation recommendations for endangered species of plants, animals, and insects