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THELYTOKOUS PARTHENOGENESIS IN CEPHUS CINCTUS NORT.: A CRITICISM

Published online by Cambridge University Press:  31 May 2012

Stanley G. Smith
Stanley G. Smith
Affiliation:
Department of Genetics, McGill University, Montreal
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Extract

I have read with great interest C. W. Farstad's paper (1938) on “Thelyotokous parthenogenesis in Cephus cinctus Nort.,” since it parallels so closely my own problem in Diprion polytomum Hartig. But, whilst agreeing with his final conclusion that there are doubtless two forms of C. cinctus manifesting alternative modes of parthenogenetic reproduction in different regions of the Province of Alberta, I must nevertheless draw attention to certain statements made by this worker which appear, in the light of modern cyto-genetic knowledge, to be highly improbable.

Type
Articles
Information
The Canadian Entomologist , Volume 70 , Issue 12 , December 1938 , pp. 259 - 260
Copyright
Copyright © Entomological Society of Canada 1938

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References

REFERENCES

Darlington, C. D. 1937. Recent Advances in Cytology 2nd Ed.J. and A. Churchill, London.Google Scholar
Farstad, C. W. 1938. Thelyotokous parthenogenesis in Cephus cinctus Nort. Can. Ent. LXX (10): 206–207.CrossRefGoogle Scholar
Smith, S. G. 1938. Cytology of Spruce Sawfly and its Control in Eastern Canada. Nature 141: 121.CrossRefGoogle Scholar