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Biology and Seasonal History of Pleurotropis utahensis Crawford, a Parasite of the Wheat Stem Sawfly1

Published online by Cambridge University Press:  31 May 2012

C. L. Neilson
C. L. Neilson
Affiliation:
Dominion Entomological (Field Crop Insect) Laboratory, Kamloops, B.C.
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Extract

Pleurotropis utahensis Crawford was first reported as a parasite of the wheat stem sawfly, Cephus cinctus Nort., by Crawford (2) prior to 1913. It has been recorded by Crawford (2) from Kimball and Salt Lake City, Utah; by Ainslie (1) from North Dakota; and by Gahan (5) from Missoula, Montana. It is one of several parasites of the wheat stem sawfly in the Prairie Provinces of Canada, where it has been recorded (7) (8) as far west as Sylvan Lake, Alberta. Criddle (3) (4), and in his original notes, records it from as far east as Boissevain, Manitoba. During the present study this parasite has been collected from sufficient locations that one might assume that it occurs throughout the area where wheat stem sawfly is found (6) in Alberta, Saskatchewan, and Manitoba.

Type
Articles
Information
The Canadian Entomologist , Volume 81 , Issue 7 , July 1949 , pp. 174 - 180
Copyright
Copyright © Entomological Society of Canada 1949

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References

Literature Cited

1. Ainslie, C. N.The western grass stem sawfly. U.S.D.A. Bull. 841 (Revised 1929), pp. 1–27. 1920.Google Scholar
2. Crawford, J. C.Descriptions of new Hymenoptera, No. 7. Proc. U.S.N.M. 45: 316–317. 1913.Google Scholar
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4. Criddle, N. The western wheat-stem sawfly (Cephus cinctus Nort.) in Canada. 52nd Ann. Rept. Ent. Soc. Ont. (1921), pp. 18–22. 1922.Google Scholar
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8. Unpublished data. Dom. Field Crop Insect Lab., Lethbridge, Alberta, Canada.Google Scholar