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Please read BHL's Acknowledgment of Harmful Content
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  1. By: Olsen, Chris E
    Type: Article
    In: Journal of the New York Entomological Society
    Volume: 31
    Date: 1923
    Page Range: 171--175
    Publication Info: Lawrence, Kan Allen Press [etc.]
  2. By: Olsen, Chris E
    Type: Article
    In: Journal of the New York Entomological Society
    Volume: 20
    Date: 1912
    Page Range: 48--58
    Publication Info: Lawrence, Kan Allen Press [etc.]
  3. By: Olsen, Chris E
    Type: Article
    In: Journal of the New York Entomological Society
    Volume: 42
    Date: 1934
    Page Range: 443--449
    Publication Info: Lawrence, Kan Allen Press [etc.]
  4. By: Olsen, Chris E
    Type: Article
    In: Journal of the New York Entomological Society
    Volume: 27
    Date: 1919
    Page Range: 126--128
    Publication Info: Lawrence, Kan Allen Press [etc.]
  5. By: Olsen, Chris E
    Type: Article
    In: Journal of the New York Entomological Society
    Volume: 18
    Date: 1910
    Page Range: 39--42
    Publication Info: Lawrence, Kan Allen Press [etc.]
  6. By: Olsen, Chris E
    Type: Article
    In: Journal of the New York Entomological Society
    Volume: 25
    Date: 1917
    Page Range: 215--218
    Publication Info: Lawrence, Kan Allen Press [etc.]
  7. By: Olsen, Chris E
    Type: Article
    In: Journal of the New York Entomological Society
    Volume: 34
    Date: 1926
    Page Range: 265--268
    Publication Info: Lawrence, Kan Allen Press [etc.]
  8. By: Olsen, Chris E - Davies, Dorothy Olsen
    Type: Article
    In: Journal of the New York Entomological Society
    Volume: 55
    Date: 1947
    Page Range: 107--113
    Publication Info: Lawrence, Kan Allen Press [etc.]