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Please read BHL's Acknowledgment of Harmful Content
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  1. By: Krafka, Joseph
    Type: Article
    In: The Biological bulletin
    Volume: 47
    Date: 1924-09-01
    Page Range: 143--148
    Publication Info: Woods Hole, Mass Marine Biological Laboratory
  2. By: Krafka, Joseph
    Type: Article
    In: Journal of the New York Entomological Society
    Volume: 31
    Date: 1923
    Page Range: 31--52
    Publication Info: Lawrence, Kan Allen Press [etc.]