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A QUANTITATIVE STUDY OF UPTAKE AND LOSS OF WATER BY EGGS OF AEDES VEXANS (DIPTERA: CULICIDAE)1

Published online by Cambridge University Press:  31 May 2012

R. A. Costello  and
R. A. Brust
R. A. Costello
Affiliation:
Department of Entomology, University of Manitoba, Winnipeg
R. A. Brust
Affiliation:
Department of Entomology, University of Manitoba, Winnipeg
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Abstract

Aedes vexans (Meigen) eggs which lose water under conditions of constant atmospheric saturation deficiencies, gain water when transferred to a saturated atmosphere. Water loss is influenced by age. At relative humidities of 80% and 50%, and temperatures of 10° and 21 °C, eggs that were 28 days old lost less water than eggs 14 days old. Eggs which lost up to 34% of their weight through desiccation regained 91% of lost water within 3 days in a saturated atmosphere. Embryos remained viable. Eggs which lost 68% of their original weight in water were rendered inviable and only regained 33% of the loss in a saturated atmosphere.

Type
Articles
Information
The Canadian Entomologist , Volume 101 , Issue 12 , December 1969 , pp. 1266 - 1269
Copyright
Copyright © Entomological Society of Canada 1969

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References

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