Journal
PHYSIOLOGICAL ENTOMOLOGY
Volume 25, Issue 4, Pages 363-369Publisher
WILEY
DOI: 10.1046/j.1365-3032.2000.00205.x
Keywords
alarm pheromones; nest defence; social wasps; spiroacetals
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The contents of the venom sacs of the two epiponine species Polybia occidentalis (Olivier) and P. sericea (Olivier) (Hymenoptera: Vespidae) have been analysed by GC-MS for their volatile constituents. The mixture of volatiles was found to be very diverse in both the species. The spiroacetal (E,E)-2,8-dimethyl-1,7-dioxaspiro[5.5]undecane, was present in both species and was the major component in P. occidentalis, where it was determined to show (2S,6R,8S)-configuration. An enantiomerically pure synthetic sample was tested in field bioassays on P. occidentalis colonies and was clearly shown to elicit alarm behaviour.
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