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Please read BHL's Acknowledgment of Harmful Content
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  1. By: Hedqvist, K J
    Type: Article
    In: Proceedings of the Entomological Society of Washington
    Volume: 71
    Date: 1969
    Page Range: 449--467
    Publication Info: Washington, etc, Entomological Society of Washington,
  2. By: Hedqvist, K J
    Type: Article
    In: Proceedings of the United States National Museum
    Volume: 124
    Date: 1968
    Page Range: 1--11
    Publication Info: Washington Smithsonian Institution Press, [etc.]