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  1. By: Olsen, C E
    Type: Article
    In: Bulletin of the Brooklyn Entomological Society
    Volume: 16
    Series: new
    Date: 1921
    Page Range: 33--37
    Publication Info: Brooklyn, N.Y, The Society,
  2. By: Olsen, C E
    Type: Article
    In: Bulletin of the Brooklyn Entomological Society
    Volume: 12
    Series: new
    Date: 1917
    Page Range: 21--21
    Publication Info: Brooklyn, N.Y, The Society,
  3. By: Olsen, C E
    Type: Article
    In: Bulletin of the Brooklyn Entomological Society
    Volume: 14
    Series: new
    Date: 1919
    Page Range: 141--142
    Publication Info: Brooklyn, N.Y, The Society,
  4. By: Olsen, C E
    Type: Article
    In: Bulletin of the Brooklyn Entomological Society
    Volume: 11
    Series: new
    Date: 1916
    Page Range: 82--83
    Publication Info: Brooklyn, N.Y, The Society,
  5. By: Olsen, C E
    Type: Article
    In: Bulletin of the Brooklyn Entomological Society
    Volume: 13
    Series: new
    Date: 1918
    Page Range: 119--121
    Publication Info: Brooklyn, N.Y, The Society,
  6. By: Olsen, C E
    Type: Article
    In: Bulletin of the Brooklyn Entomological Society
    Volume: 21
    Series: new
    Date: 1926
    Page Range: 185--187
    Publication Info: Brooklyn, N.Y, The Society,
  7. By: Olsen, C E
    Type: Article
    In: Annals of the Entomological Society of America
    Volume: 15
    Date: 1922
    Page Range: 353--368
    Publication Info: [College Park, Md., etc.], Entomological Society of America,
  8. By: Olsen, C E
    Type: Article
    In: Bulletin of the Brooklyn Entomological Society
    Volume: 16
    Series: new
    Date: 1921
    Page Range: 14--19
    Publication Info: Brooklyn, N.Y, The Society,