dcsimg
Please read BHL's Acknowledgment of Harmful Content
Sort By:
  1. By: Grissell, E E - Heydon, S L
    Type: Article
    In: Proceedings of the Entomological Society of Washington
    Volume: 101
    Date: 1999
    Page Range: 611--613
    Publication Info: Washington, etc, Entomological Society of Washington,
  2. By: Heydon, S L
    Type: Article
    In: Proceedings of the Entomological Society of Washington
    Volume: 97
    Date: 1995
    Page Range: 569--581
    Publication Info: Washington, etc, Entomological Society of Washington,
  3. By: Heydon, S L - Grissell, E E
    Type: Article
    In: Proceedings of the Entomological Society of Washington
    Volume: 90
    Date: 1988
    Page Range: 310--322
    Publication Info: Washington, etc, Entomological Society of Washington,
  4. By: Heydon, S L
    Type: Article
    In: Proceedings of the Entomological Society of Washington
    Volume: 90
    Date: 1988
    Page Range: 1--11
    Publication Info: Washington, etc, Entomological Society of Washington,
  5. By: Heydon, S L
    Type: Article
    In: Proceedings of the Entomological Society of Washington
    Volume: 91
    Date: 1989
    Page Range: 112--123
    Publication Info: Washington, etc, Entomological Society of Washington,
  6. By: Heydon, S L
    Type: Article
    In: Proceedings of the Entomological Society of Washington
    Volume: 96
    Date: 1994
    Page Range: 323--338
    Publication Info: Washington, etc, Entomological Society of Washington,
  7. By: Heydon, S L - Bouček, Zdenek
    Type: Article
    In: Proceedings of the Entomological Society of Washington
    Volume: 94
    Date: 1992
    Page Range: 471--489
    Publication Info: Washington, etc, Entomological Society of Washington,