Featuring numerous illustrations of mayfly duns and spinners on four prints, this pristine collection of drawings enlarges these tiny critters to reveal their complex structures and wide range of beautiful colors. Including all of the mayfly species important to anglers across North America--from the tiny, blue-winged, olive "psuedos" to the chunky, yellow drakes--each illustration is augmented by a high level of detail. Organized by the mayfly's time of emergence and life-stages and labeled with common and up-to-date scientific names, this fantastic collection makes a great gift for experienced and novice fishermen alike.