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Please read BHL's Acknowledgment of Harmful Content
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  1. By: Leschen, Richard A B
    Type: Article
    In: Journal of the New York Entomological Society
    Volume: 96
    Date: 1988
    Page Range: 452--458
    Publication Info: Lawrence, Kan Allen Press [etc.]
  2. By: Leschen, Richard A B - Löbl, Ivan
    Type: Article
    In: Revue suisse de zoologie
    Volume: 102
    Date: 1995
    Page Range: 425--474
    Publication Info: Genève, Kundig [etc.],