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THE SPRUCE FOLIAGE WORM AND THE SPRUCE CONE WORM (DIORYCTRIA SPP., LEPIDOPTERA, PYRALIDAE)*

Published online by Cambridge University Press:  31 May 2012

Margaret R. MacKay
Affiliation:
Ottawa, Ontario

Extract

In the literature on forest entomology there has been considerable confusion regarding the true identity of the two species of Dioryctria feeding on spruce in North America. Superficially the adults of these species resemble each other so closely that the one is easily mistaken for the other. In seasonal history and habits, however, they differ very materially.

Type
Articles
Copyright
Copyright © Entomological Society of Canada 1943

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References

REFERENCES

1.Brown, A. W. A., 1941. Foliage Insects of Spruce in Canada. Tech. Bull. 31, Dept. of Agriculture, Ottawa, Canada.Google Scholar
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