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Please read BHL's Acknowledgment of Harmful Content
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  1. By: Hopping, R
    Type: Article
    In: The Pan-Pacific entomologist
    Volume: 9
    Date: 1933
    Page Range: 84--88
    Publication Info: San Francisco, Pacific Coast Entomological Society,
  2. By: Hopping, R
    Type: Article
    In: The Pan-Pacific entomologist
    Volume: 16
    Date: 1940
    Page Range: 32--34
    Publication Info: San Francisco, Pacific Coast Entomological Society,
  3. By: Hopping, R
    Type: Article
    In: The Pan-Pacific entomologist
    Volume: 7
    Date: 1931
    Page Range: 105--106
    Publication Info: San Francisco, Pacific Coast Entomological Society,
  4. By: Hopping, R
    Type: Article
    In: The Canadian entomologist
    Volume: 53
    Date: 1921
    Page Range: 252--259
    Publication Info: Ottawa [etc.], Entomological Society of Canada [etc.],
  5. By: Hopping, R
    Type: Article
    In: The Pan-Pacific entomologist
    Volume: 12
    Date: 1936
    Page Range: 45--48
    Publication Info: San Francisco, Pacific Coast Entomological Society,
  6. By: Hopping, R
    Type: Article
    In: The Pan-Pacific entomologist
    Volume: 11
    Date: 1935
    Page Range: 75--78
    Publication Info: San Francisco, Pacific Coast Entomological Society,