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  1. By: Ryckman, R E - Arakawa, Ken Y.
    Type: Article
    In: The Pan-Pacific entomologist
    Volume: 28
    Date: 1952
    Page Range: 105--106
    Publication Info: San Francisco, Pacific Coast Entomological Society,
  2. By: Ryckman, R E - Arakawa, Ken Y.
    Type: Article
    In: The Pan-Pacific entomologist
    Volume: 28
    Date: 1952
    Page Range: 104--105
    Publication Info: San Francisco, Pacific Coast Entomological Society,