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Microctonus aethiops (Nees) auctt. and Perilitus rutilus (Nees) (Hymenoptera: Braconidae), European Parasites of Sitona Weevils (Coleoptera: Curculionidae)1

Published online by Cambridge University Press:  31 May 2012

Conrad Loan
Affiliation:
Entomology Research Institute for Biological Control, Belleville, Ontario, Canada.
F. G. Holdaway
Affiliation:
Professor, Department of Entomology and Economic Zoology, University of Minnesota, St. Paul 1, Minnesota, U.S.A.

Extract

Microctonus aethiops (Nees) auctt. (Fig. 1) and Perilitus rutilus (Nees) are parasites of adult Sitona weevils in Europe. They were released in Canada as control agents of the sweetclover weevil, Sitona cylindricollis Fahr. (Fig. 2). The immature stages and biology of the species were studied as a prerequisite to attempts at biological control. A similar investigation of the braconid Pygostolus falcatus (Nees) was completed (Loan and Holdaway, 1961). Jackson (1928) described some aspects of the biology of P. rutilus, and additional data are given in the present paper.

Type
Articles
Copyright
Copyright © Entomological Society of Canada 1961

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