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  1. By: Sperling, Felix A H
    Type: Article
    In: Quaestiones entomologicae
    Volume: 23
    Issue: 2
    Date: 1987
    Page Range: 198--315
    Publication Info: Edmonton, Dept. of Entomology, University of Alberta,
  2. By: Powell, Jerry A. - Eichlin, Thomas D., - Sperling, Felix A H
    Type: Article
    In: The Pan-Pacific entomologist
    Volume: 77
    Issue: 4
    Date: 2001
    Page Range: 229--234
    Publication Info: San Francisco Pacific Coast Entomological Society