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    Author(s): David R. Coyle; Joel D. McMillin; Elwood R. Hart
    Date: 1999
    Source: The Great Lakes Entomologist, Vol. 32, No. 3
    Publication Series: Miscellaneous Publication
    PDF: View PDF  (114 KB)

    Description

    Cottonwood leaf beetle, Chrysomela scripta, pupae from a laboratory colony were weighed and monitored through adult emergence, oviposition, and mortality to determine if correlations existed between various pupal or adult parameters and fecundity or longevity. Forty-three female cottonwood leaf beetles were monitored. Pupal weight was not a good indicator of fecundity, total oviposition events, number of eggs/beetle/day, or adult longevity In addition, adult weight showed very low correlation with fecundity, adult longevity, total oviposition events, or number of eggs/beetle/day. However, adult weight was a marginal indicator of the number of eggs/beetle/day, and correlated well with adult body length. Adult longevity could be used to predict fecundity.

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    Citation

    Coyle, David R.; McMillin, Joel D.; Hart, Elwood R. 1999. Pupal and Adult Parameters as Potential Indicators of Cottonwood Leaf Beetle (Coleoptera: Chrysomelidae) Fecundity and Longevity. The Great Lakes Entomologist, Vol. 32, No. 3

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