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Studies on the Cuticle of the Grasshopper Melanoplus bivittatus (Say) (Orthoptera: Acrididae): II. Permeability of the Cuticle to Water at Various Temperatures1

Published online by Cambridge University Press:  31 May 2012

Extract

In a previous communication of this series (4), some general properties of the epicuticle of the two-striped grasshopper Melanoplus bivittatus were deduced from permeability measurements and chemical tests under various conditions. Among other things, it was found that the epicuticle is covered by a lipid layer, which regulates the rate of permeation of moisture through the cuticle. Because it has already been shown (2, 17, 21, 23, 24) that the rate of evaporation from the cuticle of several insects is a function of temperature and age, a study was undertaken of the effect of these factors upon the transpiration through the cuticle of grasshoppers in various instars.

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Articles
Copyright
Copyright © Entomological Society of Canada 1955

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