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  1. By: Becher, Eduard
    Type: Article
    In: Wiener entomologische Zeitung
    Volume: 1
    Date: 1882
    Page Range: 249--254
    Publication Info: Wien, E. Reitter [etc.],
  2. By: Becher, Eduard
    Type: Article
    In: Wiener entomologische Zeitung
    Volume: 1
    Date: 1882
    Page Range: 49--54
    Publication Info: Wien, E. Reitter [etc.],