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A DOUGLAS-FIR TWIG MINING BEETLE, PITYOPHTHORUS ORARIUS (COLEOPTERA: SCOLYTIDAE)

Published online by Cambridge University Press:  31 May 2012

A. F. Hedlin  and
D. S. Ruth
A. F. Hedlin
Affiliation:
Forest Research Laboratory, Department of Fisheries and Forestry, Victoria, British Columbia
D. S. Ruth
Affiliation:
Forest Research Laboratory, Department of Fisheries and Forestry, Victoria, British Columbia
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Abstract

Pityophthorus orarius Bright is a small beetle which mines and kills shoots of Douglas-fir. The adult tunnels into the shoot in early summer and lays its eggs. Tunnelling of the larvae causes twig mortality indicated by characteristic "flagging".

Type
Articles
Information
The Canadian Entomologist , Volume 102 , Issue 1 , January 1970 , pp. 105 - 108
Copyright
Copyright © Entomological Society of Canada 1970

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References

Bright, D. E. Jr., 1968. Three new species of Pityophthorus from Canada (Coleoptera: Scolytidae). Can. Ent. 100: 604–608.Google Scholar
Chamberlin, W. J. 1958. The Scolytoidea of the Northwest: Oregon, Washington, Idaho and British Columbia. Oregon State College, Corvallis.Google Scholar