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  1. By: Derry, N J - Derry, A C
    Type: Article
    In: The entomologist's record and journal of variation
    Volume: 90
    Date: 1978
    Page Range: 205--210
    Publication Info: [London s.n
  2. By: Derry, N J - Derry, A C
    Type: Article
    In: The entomologist's record and journal of variation
    Volume: 90
    Date: 1978
    Page Range: 317--320
    Publication Info: [London s.n
  3. By: Derry, N J - Derry, A C
    Type: Article
    In: The entomologist's record and journal of variation
    Volume: 91
    Date: 1979
    Page Range: 275--278
    Publication Info: [London s.n