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  1. By: Sheldon, W G
    Type: Article
    In: The entomologist's record and journal of variation
    Volume: 28
    Date: 1916
    Page Range: 261--264
    Publication Info: [London s.n
  2. By: Sheldon, W G
    Type: Article
    In: The entomologist's record and journal of variation
    Volume: 29
    Date: 1917
    Page Range: 1--3
    Publication Info: [London s.n