(R) -3-Hydroxyhexan-2-one is a major pheromone component of anelaphus inflaticollis (coleoptera: Cerambycidae)

A. M. Ray, I. P. Swift, J. A. Moreira, J. G. Millar, L. M. Hanks

Research output: Contribution to journalArticle

Abstract

We report the identification and field bioassays of a major component of the maleproduced aggregation pheromone of Anelaphus inflaticollis Chemsak, an uncommon desert cerambycine beetle. Male A. inflaticollis produced a sex-specific blend of components that included (R)-3-hydroxyhexan-2-one, (S)-2-hydroxyhexan-3-one, 2,3-hexanedione, and (2R,3R)- and (2R,3S)2,3- hexanediols. Field trials with baited bucket traps determined that the reconstructed synthetic pheromone blend and (R)-3-hydroxyhexan-2-one alone attracted adult A. inflaticollis of both sexes, with significantly more beetles being attracted to the blend. We conclude that (R)-3-hydroxyhexan2-one is a major pheromone component of A. inflaticollis, and our results suggest that one or more of the minor components may further increase attraction of conspecifics. Scanning electron microscopy showed that male A. inflaticollis have pores on the prothorax that are consistent in structure with sex-specific pheromone gland pores in related species. Males also displayed stereotyped calling behavior similar to that observed in other cerambycine species. This study represents the first report of volatile pheromones for a cerambycine species in the tribe Elaphidiini.

Original languageEnglish (US)
Pages (from-to)1462-1466
Number of pages5
JournalEnvironmental entomology
Volume38
Issue number5
DOIs
StatePublished - Oct 1 2009

Keywords

  • (R)-3-hydroxyhexan-2-one
  • Longhorned beetle
  • Mating behavior
  • Mojave desert
  • Sex pheromone

ASJC Scopus subject areas

  • Ecology, Evolution, Behavior and Systematics
  • Ecology
  • Insect Science

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