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  1. Exotic Lady Beetle Survey In Northeastern United States: Hippodamia Variegata And Propylea Quatuordecimpunctata (Coleoptera : Coccinellidae)
    By: Ellis, D R - Prokrym, D R - Adams, R G
    Type: Article
    In: Entomological News
    Volume: 110
    Date: 1999
    Page Range: 73--84
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  2. The Known Distribution Of The Predator Propylea quattuordecimpunctata Origin Of This Species And 5 Other Exotic Lady Beetles In Eastern North america
    By: Day, W H - Prokrym, D R - Ellis, D R - Chianese, R J
    Type: Article
    In: Entomological News
    Volume: 105
    Date: 1994
    Page Range: 244--256
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