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  1. By: Gruev, Blagoĭ - Askevold, Ingolf S.
    Type: Article
    In: The Pan-Pacific entomologist
    Volume: 64
    Issue: 2
    Date: 1988
    Page Range: 139--145
    Publication Info: San Francisco Pacific Coast Entomological Society
  2. By: Askevold, Ingolf S.
    Type: Article
    In: Quaestiones entomologicae
    Volume: 26
    Issue: 4
    Date: 1990
    Page Range: 601--664
    Publication Info: Edmonton, Dept. of Entomology, University of Alberta,