Letter | Published:

Evidence for hormonal control of integumentary water loss in cockroaches


THE susceptibility of terrestrial insects to desiccation is minimised by extremely effective integumentary waterproofing, which results from the presence of remarkably impermeable epicuticular lipids1 and, it is suggested, from the properties of the underlying epidermal cells2. On the basis of rather limited information3,4 it has, in addition, been suggested that the rate of integumentary water loss may be regulated, the degree of permeability depending on the ambient humidity2.

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