(R)-acetoin-female sex pheromone of the summer chafer Amphimallon solstitiale (L.)

Till Tolasch, Susanne Sölter, Miklós Tóth, Joachim Ruther, Wittko Francke

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Extracts of Amphimallon solstitiale (L.), a well known, widely distributed and rather common European scarab beetle, were analyzed by GC-MS and GC-EAD. Acetoin - (R):(S) > 9:1 - as well as 2,3-butanediol - (2R,3R): (2S,3S):meso = 1:1:9 - were present in extracts of both males and females. Although (2S,3S)-butanediol did not show any EAD activity, the other compounds elicited strong responses exclusively with male antennae. In contrast, several EAD active green leaf volatiles were detected equally well by male and female antennae. During preliminary field bioassays, (R)-acetoin was highly attractive to swarming males, whereas neither rac-acetoin nor the 2,3-butanediols showed activity. Therefore, (R)-acetoin is the female sex pheromone of A. solstitiale.

Original languageEnglish
Pages (from-to)1045-1050
Number of pages6
JournalJournal of Chemical Ecology
Issue number4
Publication statusPublished - Apr 1 2003



  • Amphimallon solstitiale
  • Coleoptera Scarabaeidae Melolonthinae sex pheromone (R)-acetoin (2R,3R)-butanediol meso-2,3-butanediol
  • Summer chafer

ASJC Scopus subject areas

  • Ecology, Evolution, Behavior and Systematics
  • Biochemistry

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