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  1. By: Simmons, Robert S - Anderson, William A
    Type: Article
    In: The Journal of Research on the Lepidoptera
    Volume: 9
    Issue: 3
    Date: 1970
    Page Range: 175--184
    Publication Info: Arcadia, Calif, Lepidoptera Research Foundation,
  2. By: Harris, Herbert S - Simmons, Robert S
    Type: Article
    In: Memórias do Instituto Butantan
    Volume: 40-41
    Date: 1978
    Page Range: 305--311
    Publication Info: São Paulo O Instituto 1918-2006
  3. By: Stine, Charles J. - Fowler, James A. - Simmons, Robert S
    Type: Article
    In: Annals of the Carnegie Museum
    Volume: 33
    Date: 1954-03-08
    Page Range: 145--148
    Publication Info: [Pittsburgh], Published by authority of the Board of Trustees of the Carnegie Institute, 1901-