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Methods of Sexing and Sex Ratios of the Southern Pine Beetle, Dendroctonus frontalis Zimm

Published online by Cambridge University Press:  31 May 2012

E. A. Osgood Jr.  and
E. W. Clark
E. A. Osgood Jr.
Affiliation:
Forest Sciences Laboratory, Southeastern Forest Experiment Station, U.S.Forest Service, Durham, North Carolina
E. W. Clark
Affiliation:
Forest Sciences Laboratory, Southeastern Forest Experiment Station, U.S.Forest Service, Durham, North Carolina
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Abstract

Several criteria for determining the sex of the southern pine beetle, Dendroctonus frontalis Zimm., were investigated. The combination of the prominence of the frontal tubercles and depth of frontal groove was 100% accurate and was chosen as the best criterion. Data on sex ratios at different points in the beetle's life history are given.

Type
Articles
Information
The Canadian Entomologist , Volume 95 , Issue 10 , October 1963 , pp. 1106 - 1109
Copyright
Copyright © Entomological Society of Canada 1963

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References

Chapman, J. A. 1955. Sex determination by stridulation sounds in the Douglas-fir beetle, Dendroctonus pseudotsugae. Canada Dept. Agric. Science Service, Forest Biol. Div. Bi-Monthly Progress Rept. 11: 1–4.Google Scholar
Hopkins, A. D. 1909. Contributions toward a monograph of the scolytid beetles. I. The genus Dendroctonus. U.S. Dept. Agric. Tech. Ser. No. 17, Part I, p. 1–164.Google Scholar
Lyon, R. L. 1959. A useful secondary sex character in Dendroctonus bark beetles. Canad. Ent. 90: 582–584.CrossRefGoogle Scholar