Three guides for the systematic diagnosis of the insects directly along the rivers and streams. For the first time, the fly-fishing world has a perfect tool ava

Written in language that is accessible to the sports fisherman and the naturalist and with over 1,000 original illustrations, the book includes features such as

Freshwater invertebrates identification guide for both professionals and non-professionals. Contains a key to all the macroinvertebrate groups and photographs o

The book is a comprehensive text on all aspects of the biology of aquatic insects around the world. This fauna comprises many thousands of species that previous