Fully illustrated guide to identifying water-dwelling macroinvertebrates. A handy resource for anglers, students, biologists, or anyone else spending time near

From the damselfly to the whirligig beetle, our nation's streams are teeming with critters. This convenient, inexpensive guide allows you to identify any that y

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