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  1. By: Costello, R A
    Type: Article
    In: Journal of the Entomological Society of British Columbia
    Volume: 74
    Date: 1977
    Page Range: 9--9
    Publication Info: [Victoria, etc.] Entomological Society of British Columbia
  2. By: Opit, G P - Peterson, B - Gillespie, David Roy - Costello, R A
    Type: Article
    In: Journal of the Entomological Society of British Columbia
    Volume: 94
    Date: 1997
    Page Range: 3--6
    Publication Info: [Victoria, etc.] Entomological Society of British Columbia