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THE NATURE OF CYSTS FOUND IN PUPAE AND ADULTS OF NEODIPRION SWAINEI

Published online by Cambridge University Press:  31 May 2012

W. A. Smirnoff
Affiliation:
Forest Research Laboratory, Department of Forestry and Rural Development, Quebec, Quebec

Abstract

The cysts sometimes observed in the intestinal cavity of pupae and in the abdominal cavity of adults of Neodiprion swainei Midd. are not typical tumors. No cell proliferations were observed but rather a precipitation of the cells that accumulated and formed a membrane composed of many layers. The cysts appear to result from encapsulation of incompletely lysed or unlysed cells of the midgut epithelium. They are not necessarily the result of a viral infection.

Type
Articles
Copyright
Copyright © Entomological Society of Canada 1968

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References

Bird, F. T. 1919. Tumors associated with a virus infection in an insect. Nature 163, 777778.CrossRefGoogle Scholar
Smirnoff, W. A. 1967. A method for detecting viral infection in populations of Neodiprion swainei by examination of pupae and adults. Can. Ent. 99, 214216.Google Scholar