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  1. By: Adams, H. S. - Houseweart, M W - Oliveria, F L - Coulson, Robert N. (Robert Norris),
    Type: Article
    In: Entomological news
    Volume: 83
    Date: 1972
    Page Range: 198--200
    Publication Info: [Philadelphia], American Entomological Society, 1925-
  2. By: Conner, Richard N - Saenz, Daniel - Rudolph, D Craig - Coulson, Robert N. (Robert Norris),
    Type: Article
    In: The Wilson bulletin
    Volume: 110
    Issue: 1
    Date: 1998
    Page Range: 100--109
    Publication Info: Columbus, Ohio, Wilson Ornithological Society, 1894-