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Quarterly Journal of Microscopical Science, Vol s2-75, 131-150, Copyright © 1932 by Company of Biologists

Memoirs: On the Function of the so-called ‘Rectal Glands’ of Insects

V. B. WIGGLESWORTH M.A., M.D.1

1 London School of Hygiene and Tropical Medicine

It is suggested that the rectal glands and rectal epithelium of insects reabsorb water from the excrement before it is discharged, and thus play an important part in water-conservation.

Observations on larval and adult insects belonging to all the main orders are described in support of this hypothesis.

Earlier observations and opinions on the rectal glands are discussed. Many of these are shown to agree with the theory here put forward.

In the course of this work I have received much assistance from others. I am particularly indebted to Mr. D. Morland for providing bees from his experimental hives; the developing pupae of Lucilia were provided by Dr. E. P. Hobson; the fleas were bred by Mr. H. S. Leeson, and the human lice by Mr. K. Mellanby; Lepisma and Chrysopa were secured by Mr. D. Gillett, and the numerous microscopic sections were cut by Mr. H. J. Sutton.






© The Company of Biologists Ltd 1932