This German-language book by Carl Linnaeus, the father of modern taxonomy, is a treatise on the harmful effects of insects on agriculture and human health. The book includes detailed observations and scientific analysis of various insect species and their impact on the environment. An important work for students of entomology and ecology.

This work has been selected by scholars as being culturally important, and is part of the knowledge base of civilization as we know it.

This work is in the "public domain in the United States of America, and possibly other nations. Within the United States, you may freely copy and distribute this work, as no entity (individual or corporate) has a copyright on the body of the work.

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