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  1. By: Penney, C C
    Type: Article
    In: The entomologist's record and journal of variation
    Volume: 99
    Date: 1987
    Page Range: 181--182
    Publication Info: [London s.n
  2. By: Penney, C C
    Type: Article
    In: The entomologist's record and journal of variation
    Volume: 94
    Date: 1982
    Page Range: 8--8
    Publication Info: [London s.n