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  1. By: Roughley, R E - Pengelly, D H
    Type: Article
    In: Quaestiones entomologicae
    Volume: 17
    Issue: 3/4
    Date: 1981
    Page Range: 249--314
    Publication Info: Edmonton, Dept. of Entomology, University of Alberta,
  2. By: Pengelly, D H
    Type: Article
    In: The Canadian field-naturalist
    Volume: 86
    Issue: 4
    Date: 1972
    Page Range: 415--416
    Publication Info: Ottawa Ottawa Field-Naturalists' Club
  3. By: Huber, J T - Pengelly, D H
    Type: Article
    In: Proceedings of the Entomological Society of Ontario
    Volume: 110
    Date: 1980
    Page Range: 47--51
    Publication Info: Guelph, Ont., etc, Entomological Society of Ontario,