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Determination of Sex of the Douglas-fir Beetle Dendroctonus pseudotsugae Hopkins (Coleoptera: Scolytidae)1

Published online by Cambridge University Press:  31 May 2012

Orlo K. Jantz
Affiliation:
Department of Entomology, Oregon State University, Corvallis
Richard L. Johnsey
Affiliation:
Department of Entomology, Oregon State University, Corvallis

Abstract

A comparison of four sex determination methods shows that microscopic observation of the elytral declivity is the most accurate and rapid method for sexing large quantities of Douglas-fir beetles.

Type
Articles
Copyright
Copyright © Entomological Society of Canada 1964

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References

Chapman, J. A. 1955. Sex determination by stridulation sounds in the Douglas-fir beetle, Dendroctonus pseudotsugae. Can. Dep. Agric., Sci. Serv., For. Biol. Div. Bi-mon. Progr. Rep. 11: 14.Google Scholar
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