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Observations on Internal Parasites (Hymenoptera: Scelionidae) of Eggs of Pest Grasshopper Species in the Prairie Provinces of Canada1

Published online by Cambridge University Press:  31 May 2012

L. G. Putnam
L. G. Putnam
Affiliation:
Field Crop Insect Laboratory, Saskatoon, Sask.
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Extract

Internal parasites belonging to the genus Scelio Latr. have been reported found in grasshopper eggs in several of the northern states of the United States. Muesebeck and Walkley (1951, p. 702) reported S. calopteni Riley in Melanoplus spp., including M. mexicanus mexicanus (Sauss.) and M. bivittatus (Say), in states adjacent to thc Prairie Provinces of Canada. In Canada, Criddle (1921) reported Scelio sp(p). in Manitoba during a grasshopper outbreak which took place about 1920. Since then, the presence of Scelio sp(p). in grasshopper eggs has frequently been noted in the Prairie Provinces by entomologists. Studies of the viability, embryonic development, and parasitism of Western Canadian grasshopper eggs begun and largely carried out by the late Mr. H. W. Moore at the Field Crop Insect laboratories at Brandon and Saskatoon have made possible an approach to the quantitative evaluation of these parasites.

Type
Articles
Information
The Canadian Entomologist , Volume 85 , Issue 7 , July 1953 , pp. 255 - 260
Copyright
Copyright © Entomological Society of Canada 1953

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References

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