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  1. By: Cockfield, Stephen D. - Beers, E H
    Type: Article
    In: Journal of the Entomological Society of British Columbia
    Volume: 105
    Date: 2008
    Page Range: 89--96
    Publication Info: [Victoria, etc.], Entomological Society of British Columbia,
  2. By: Cockfield, Stephen D. - Beers, E H - Zack, Richard Stanly,
    Type: Article
    In: Journal of the Entomological Society of British Columbia
    Volume: 104
    Date: 2007
    Page Range: 35--44
    Publication Info: [Victoria, etc.], Entomological Society of British Columbia,
  3. By: Cockfield, Stephen D. - Beers, E H - Horton, D R - Miliczky, Eugene R.
    Type: Article
    In: Journal of the Entomological Society of British Columbia
    Volume: 104
    Date: 2007
    Page Range: 45--54
    Publication Info: [Victoria, etc.], Entomological Society of British Columbia,