Subspecies of the Balsam Woolly Aphid, Adelges piceae (Homoptera: Adelgidae), in North America
- 15 March 1983
- journal article
- research article
- Published by Oxford University Press (OUP) in Annals of the Entomological Society of America
- Vol. 76 (2) , 299-304
- https://doi.org/10.1093/aesa/76.2.299
Abstract
Based on multivariate morphometric analysis of variation among populations in North America, three subspecies of balsam woolly aphid, Adelges piceae (Ratzeburg), are described and illustrated: A. piceae piceae (Ratzeburg), A. piceae canadensis (Merker and Eichhorn), and A. piceae occidentalis, subsp. nov. Diagnostic characters of the 1st instar and the adult and a key to the North American subspecies are provided.Keywords
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