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  1. By: Trapido, Harold,
    Publication info: Chicago, Chicago Natural History Museum, 1953
    Holding Institution: University Library, University of Illinois Urbana Champaign
  2. By: Dunn, E. R. (Emmett Reid), - Evans, Howard E. (Howard Ensign), - Trapido, Harold,
    Publication info: 1948
    Holding Institution: American Museum of Natural History Library
  1. By: Trapido, Harold,
    Type: Article
    In: Fieldiana
    Volume: 34
    Date: 1953
    Page Range: 181--187
    Publication Info: [Chicago] Chicago Natural History Museum [1945?-
  2. By: Galindo, Pedro - Carpenter, Stanley J. (Stanley Jennings), - Trapido, Harold,
    Type: Article
    In: Proceedings of the Entomological Society of Washington
    Volume: 51
    Date: 1949
    Page Range: 277--278
    Publication Info: Washington, etc, Entomological Society of Washington,