This definition appears very rarely
2000. Release of Pseudoscymnus tsugae (Coleoptera: Coccinellidae) on the Hemlock Woolly Adelgid, Adelges tsugae (Homoptera: Adelgidae) in NJ. Annual Report 2000. New Jersey Department of Agriculture. Division of Plant Industry, Phillip Alampi Beneficial Insect Laboratory, Trenton, NJ. Orwig, D. A. and Foster, D. R. Stand, Landscape, and Ecosystem Analyses of Hemlock Woolly Adelgid Outbreaks in Southern New England: An Overview.