Composition of the defensive secretion of the Neotropical millipede Rhinocricus padbergi Verhoeff 1938 (Diplopoda: Spirobolida: Rhinocricidae)

Publication Type:Journal Article
Year of Publication:2003
Authors:A. Arab, Zacarin, G. G., Fontanetti, C. S., Camargo-Mathias, M. Isabel, Santos, M. G. dos, Cabrera, A. C.
Journal:Entomotropica
Volume:18
Pagination:79-82
Date Published:Aug
ISBN Number:1317-5262
Keywords:Alkaloids, benzoquinones, chemical defense, repugnatorial glands
Abstract:

The components of extracts of the repugnatorial glands were identified in the millipede R. padbergi. Hexane extracts of 50 glands were prepared and analyzed by gas cromatography-mass spectrometry (GC-MS). We identified the two main volatile compounds: methyl-1,4-benzoquinone and 3,3a,4,5-tetrahydro-1H-pyrrolo-[2,3-b] pyridine-2,6-dione. The significance of these compounds in the secretion of the repugnatorial glands is discussed.

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