This is the first comprehensive treatment of the Brazilian scorpion fauna since 1945. It provides keys and detailed descriptions of the known scorpion fauna of Brazil. It also includes accounts of various aspects of scorpion ecology and biogeography which place the Brazilian species in a worldwide context. It shows why certain species have recently become extinct while others are endangered throughout tropical South America. Far more than an identification guide, this book is a stimulating introduction to the study of scorpions in general.