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A TECHNIQUE FOR AGEING COCOONS OF THE SAWFLY NEODIPRION SERTIFER (HYMENOPTERA: DIPRIONIDAE)

Published online by Cambridge University Press:  31 May 2012

Fong-Ching Chai  and
S. E. Dixon
Fong-Ching Chai
Affiliation:
Department of Zoology, University of Guelph, Guelph, Ontario
S. E. Dixon
Affiliation:
Department of Zoology, University of Guelph, Guelph, Ontario
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Abstract

A technique for ageing cocoons of Neodiprion sertifer (Geoff.) is outlined using the redox dye 2,6-dichloroindophenol. New cocoons reduce 1 ml of a 0.001% solution in 85% ethanol from blue to colorless in 15 minutes. This reducing power diminishes with age.

Type
Articles
Information
The Canadian Entomologist , Volume 103 , Issue 1 , January 1971 , pp. 80 - 83
Copyright
Copyright © Entomological Society of Canada 1971

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References

Chai, Fong-Ching. 1968. Studies on the darkening process of cocoons of the sawfly Neodiprion sertifer (Geoff.). M.Sc. Thesis, Department of Zoology, University of Guelph.Google Scholar