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The Life History and Habits of Scolytus unispinosus Leconte (Coleoptera: Scolytidae) in the Interior of British Columbia1

Published online by Cambridge University Press:  31 May 2012

L. H. McMullen  and
M. D. Atkins
L. H. McMullen
Affiliation:
Forest Biology Laboratory, Victoria, B.C.
M. D. Atkins
Affiliation:
Forest Biology Laboratory, Victoria, B.C.
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Extract

The Douglas-fir engraver, Scolytus unispinosus Leconte, is a common bark beetle throughout the Pacific Coast and Rocky Mountain Region of North America. Although it occasionally kills young trees (Chamberlin, 1939), it is of minor economic importance, usually confining its attack to tops, limbs and logging slash. In standing timber it acts primarily as a secondary insect, attacking the tops and branches of trees killed or severely weakened by other agents. In the interior of British Columbia it is commonly found in Douglas fir, Pseudotsuga menziesii (Mirb.) Franco, and thus it is of interest as an associate of the Douglas-fir beetle, Dendroctonus pseudotsugae Hopk. Two other bark beetles Pseudohylesinus nebulosus (Leconte) and Scolytus tsugae (Swaine) with similar associations were studied earlier (Walters and McMullen, 1956; McMullen and Atkins, 1959).

Type
Articles
Information
The Canadian Entomologist , Volume 94 , Issue 1 , January 1962 , pp. 17 - 25
Copyright
Copyright © Entomological Society of Canada 1962

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References

Atkins, M. D., and McMullen, L. H.. 1957. A note on sexing live specimens of Scolytus unispinosus LeConte. Proc. Ent. Soc. B.C. 54: 8–10.Google Scholar
Blackman, M. W. 1938. A revisional study of the genus Scolytus Geoffroy (Eccoptogaster Herbst) in North America. U.S.D.A. Tech. Bull. 431, 30 pp.Google Scholar
Chamberlin, W. J. 1939. The bark and timber beetles of North America north of Mexico. OSC Co operative Association, Corvallis, Oregon. (Litho.) 513 pp.Google Scholar
Chamberlin, W. J. 1958. The Scolytoidea of the Northwest: Oregon, Washington, Idaho, and British Columbia. OSC Monographs, Studies in Entomology 2, OSC Press, Corvallis, Oregon. 205 pp.Google Scholar
Chapman, J. A., and Kinghorn, J. M.. 1955. Window flight traps for insects. Can. Ent. 87: 46–47.CrossRefGoogle Scholar
Forbes, W. T. M. 1953. Note on multimodal curves. Ann. Ent. Soc. Amer. 46: 221–224.CrossRefGoogle Scholar
Keen, F. P. 1952. Insect enemies of western forests. U.S.D.A. Misc. Publ. 273, 280 pp.Google Scholar
LeConte, J. L., and Horn, G. H.. 1876. The Rhynchophora of America, north of Mexico. Proc. Amer. Phil. Soc. 15: 1–455.Google Scholar
McMullen, L. H., and Atkins, M. D.. 1959. Life history and habits of Scolytus tsugae (Swaine) (Coleoptera: Scolytidae) in the interior of British Columbia. Can. Ent. 91: 416–426.CrossRefGoogle Scholar
Swaine, J. M. 1918. Canadian bark–beetles. Part II. A preliminary classification, with an account of the habits and means of control. Can. Dept. Agr. Ent. Branch Bull. 14, 143 pp.Google Scholar
Walters, J., and McMullen, L. H.. 1956. Life history and habits of Pseudohylesinus nebulosus (LeConte) in the interior of British Columbia. Can. Ent. 88: 197–202.CrossRefGoogle Scholar