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Please read BHL's Acknowledgment of Harmful Content
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  1. By: Trippel, Albert W.
    Type: Article
    In: Bulletin of the Brooklyn Entomological Society
    Volume: 29
    Series: new
    Date: 1934
    Page Range: 74--76
    Publication Info: Brooklyn, N.Y, The Society,
  2. By: Montgomery, B E - Trippel, Albert W.
    Type: Article
    In: Entomological news
    Volume: 44
    Date: 1933
    Page Range: 258--261
    Publication Info: [Philadelphia], American Entomological Society, 1925-