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Please read BHL's Acknowledgment of Harmful Content
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  1. By: Guthrie, Esther
    Type: Article
    In: Annals of the Entomological Society of America
    Volume: 10
    Date: 1917
    Page Range: 314--319
    Publication Info: [College Park, Md., etc.], Entomological Society of America,
  2. By: Guthrie, Esther
    Type: Article
    In: The Pan-Pacific entomologist
    Volume: 7
    Date: 1931
    Page Range: 107--109
    Publication Info: San Francisco, Pacific Coast Entomological Society,