Letter | Published:

Abrasion of the Insect Cuticle by Aqueous Suspensions of Small Particles


I HAVE recently had occasion to require a standard or repeatable degree of abrasion of the cuticle of an insect, the larva of Rhodnius 1. It was observed that in regions where excreta containing crystals of uric acid had dried on the surface, the cuticle appeared to be more permeable, suggesting that the drying of suspensions containing solid particles might produce abrasion. This was tested by applying suitable suspensions in distilled water, allowing them to dry in air, removing the particles in a stream of water and then testing for abrasion by exposure to ammoniacal silver hydroxide2.

Access optionsAccess options

Rent or Buy article

Get time limited or full article access on ReadCube.


All prices are NET prices.


  1. 1

    Wigglesworth, V. B., J. Insect Physiol., 2 (in the press).

  2. 2

    Wigglesworth, V. B., J. Exp. Biol., 21, 97 (1945).

  3. 3

    McIntosh, A. H., Ann. App. Biol., 34, 586 (1947).

  4. 4

    Glynn Jones, G. D., J. Exp. Biol., 32, 95 (1955).

  5. 5

    Holdgate, M. W., “The Wetting and Water-proofing Properties of Some Insect Cuticles”, thesis, University of Cambridge (1955).

Download references

Author information

Rights and permissions

Reprints and Permissions

About this article


By submitting a comment you agree to abide by our Terms and Community Guidelines. If you find something abusive or that does not comply with our terms or guidelines please flag it as inappropriate.