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  1. By: Pickering, R R
    Type: Article
    In: The entomologist's record and journal of variation
    Volume: 89
    Date: 1977
    Page Range: 4--4
    Publication Info: [London s.n
  2. By: Pickering, R R
    Type: Article
    In: The entomologist's record and journal of variation
    Volume: 89
    Date: 1977
    Page Range: 9--9
    Publication Info: [London s.n
  3. By: Pickering, R R
    Type: Article
    In: The entomologist's record and journal of variation
    Volume: 89
    Date: 1977
    Page Range: 20--20
    Publication Info: [London s.n
  4. By: Pickering, R R
    Type: Article
    In: The entomologist's record and journal of variation
    Volume: 92
    Date: 1981
    Page Range: 274--274
    Publication Info: [London s.n
  5. By: Pickering, R R
    Type: Article
    In: The entomologist's record and journal of variation
    Volume: 87
    Date: 1975
    Page Range: 51--51
    Publication Info: [London s.n