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  1. By: Horn, G H
    Type: Article
    In: Transactions of the American Entomological Society
    Volume: 4
    Date: 1872
    Page Range: 143--152
    Publication Info: Philadelphia, The Society, 1867-1877
  2. By: Horn, G H
    Type: Article
    In: Transactions of the American Entomological Society
    Volume: 4
    Date: 1873
    Page Range: 311--342
    Publication Info: Philadelphia, The Society, 1867-1877