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Observations on Hyperparasitism of the Wheat Stem Sawfly Cephus cinctus Nort. (Hymenoptera: Cephidae)1

Published online by Cambridge University Press:  31 May 2012

W. A. Nelson
W. A. Nelson
Affiliation:
Field Crop Insect Laboratory, Lethbridge, Alberta
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Extract

The biology of Bracon cephi (Gah.) (Hymenoptera: Braconidae) was described recently (Nelson and Farstad, 1953). During studies from the Field Crop Insect Laboratory, Lethbridge, on the biology of this important parasit, observations were made on various other hymenopterous parasites associated with the wheat stem sawfly, Cephus cinctus Nort. The parasites discussed herein are Eupelmella vesicularis (Retz.) (Eupelmidae), Eurytoma atripes Gah. (Eurytomidae), and Merisus febriculosus Gir. (Pteromalidae). These three parasites have been noted by Gahan (1933) as parasites of the hessian fly, Phytophaga destructor (Say).

Type
Articles
Information
The Canadian Entomologist , Volume 85 , Issue 7 , July 1953 , pp. 249 - 251
Copyright
Copyright © Entomological Society of Canada 1953

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References

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Nelson, W. A., and Farstad, C. W.. 1953. Biology of Bracon cephi (Gahan) (Hymenoptera: Braconidae), an important native parasite of the wheat stem sawfly, Cephus cinctus Nort. (Hymenoptera: Cephidae), in Western Canada. Canadian Ent. 85: 103–107.CrossRefGoogle Scholar
Nelson, W. A., and Farstad, C. W.. In preparation. The economic importance of Bracon cephi (Gahan) (Hymenoptera:Braconidie), a parasite of the wheat stem sawfly, Cephus cinctus Nort. (Hymenoptera: Cephidae).Google Scholar
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