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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
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).
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- Copyright © Entomological Society of Canada 1953
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