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  1. By: Prola, Carlo - Beer, Sergio
    Type: Article
    In: Memorie della Società entomologica italiana
    Volume: 73
    Date: 1994
    Page Range: 231--271
    Publication Info: Genova F.lli Pagano
  2. By: Prola, Carlo - Beer, Sergio
    Type: Article
    In: Memorie della Società entomologica italiana
    Volume: 70
    Issue: 1
    Date: 1991
    Page Range: 279--312
    Publication Info: Genova F.lli Pagano