Secretion of Benzaldehyde and Hydrogen Cyanide by the Millipede Pachydesmus crassicutis (Wood)

@article{Blum1962SecretionOB,
  title={Secretion of Benzaldehyde and Hydrogen Cyanide by the Millipede Pachydesmus crassicutis (Wood)},
  author={Murray Sheldon Blum and Joseph Woodring},
  journal={Science},
  year={1962},
  volume={138},
  pages={512 - 513}
}
The millipede Pachydesmus crassicutis (Wood) secretes a mixture of benzaldehyde and hydrogen cyanide when it is disturbed. These compounds are secreted through paired glands located on 11 of the notal projections of adult millipedes. Experiments with the imported fire ant demonstrate that these natural products serve a defensive function. 

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Benzoyl cyanide and mandelonitrile benzoate in the defensive secretions of millipedes

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Cyanogenesis and the role of cyanogenic compounds in insects.

The cyanogenic system comprising cyanogenic glycosides, hydroxynitriles (cyanohydrins), beta-glucosidases and nitrile lyases is widespread in the plant kingdom but also occurs in several arthropods, and their function as defensive compounds seems likely on the basis of their ability to generate HCN and their localization.

THE NITRILOSIDES IN PLANTS AND ANIMALS

A nitriloside is a naturally occurring or synthetic compound which upon hydrolysis by a beta-glucosidase yields a molecule of a non-sugar, or aglycone, a molecule of free hydrogen cyanide, and one or

1-Octen-3-ol Together with Geosmin: New Secretion Compounds from a Polydesmid Millipede, Niponia nodulosa

Biological activity of 1-octen-3-ol suggests that this compound is involved in intraspecific communication in this millipede and may play a role as an alarm pheromone.
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