1st reprint: 1977; This publication, although fairly old, is an excellent resource for aquatic entomologists or anyone with a deep interest in the Nearctic Corixidae (water boatmen). There is also coverage of Mexican, Central American, and Carribbean species. The publication contains numerous b/w plates/illustrations, distribution maps, keys for subfamilies, genera, and all species found in the Western Hemisphere, plus information on systematics, biology, ecology, distribution, and collecting and mounting techniques.