Canadian Forest Service Publications
Keys to lepidopterous larvae associated with the spruce budworm in northeastern North America. 1982. Lindquist, O.H. Environment Canada, Canadian Forestry Service, Great Lakes Forestry Centre, Sault Ste. Marie, Ontario. 18 p.
Available from: Great Lakes Forestry Centre
Catalog ID: 9337
CFS Availability: PDF (download)
This report was prepared to facilitate the separation and identification of lepidopterous larvae associated with the spruce budworm (Choristoneura fumiferana (Clem.)) in its various feeding sites on spruce (Picea spp.) and fir (Abies spp.) in northeastern North America. Three dichotomous keys, with 12 illustrations, are presented; they deal with needleminers, defoliators, and cone feeders. Twenty-two references to the larval morphology and/or biology of species are cited.
Also available under the title:
Clés d’identification des larves de lépidoptères apparentées à la tordeuse des bourgeons de l’épinette dans le nord-est de l’Amérique du Nord. (French)
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