Chrysomelidial in the defensive secretion of the leaf beetleGastrophysa cyanea Melsheimer

@article{Blum2004ChrysomelidialIT,
  title={Chrysomelidial in the defensive secretion of the leaf beetleGastrophysa cyanea Melsheimer},
  author={Murray S. Blum and Joseph B. Wallace and Richard M. Duffield and John Morgan Brand and Henry M. Fales and Edward A. Sokoloski},
  journal={Journal of Chemical Ecology},
  year={2004},
  volume={4},
  pages={47-53}
}
Larvae of the chrysomelid beetleGastrophysa cyanea produce a defensive secretion in their eversible thoracic and abdominal glands that is an effective repellent for small predators such as fire ants. This secretion is composed primarily of chrysomelidial, 2-(2-formyl-3-methyl-2-cyclopentenyl)propanal, and a compound tentatively identified as its enol lactone. Adaptations that optimize the effectiveness of the larval defensive exudate are discussed. 

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