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Please read BHL's Acknowledgment of Harmful Content
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  1. By: Donald, D B - Mutch, R A
    Type: Article
    In: Quaestiones entomologicae
    Volume: 16
    Issue: 3/4
    Date: 1980
    Page Range: 657--670
    Publication Info: Edmonton, Dept. of Entomology, University of Alberta,