Some species of the genus Camponotus are not true carpenter ants, say Hansen (biology, Spokane Falls Community College, Washington) and Klotz (entomology, U. of California-Riverside), because they nest in preformed cavities or in soil rather than excavating nests in wood. They focus on those that are structural or nuisance pests in the US and Canada. They cover the ecology, morphology, taxonomy and distribution, life history, foraging, and economic importance and management. Annotation ©2005 Book News, Inc., Portland, OR (booknews.com)