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1 October 2009 (R) -3-Hydroxyhexan-2-one Is a Major Pheromone Component of Anelaphus inflaticollis (Coleoptera: Cerambycidae)
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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.

© 2009 Entomological Society of America
A. M. Ray, I. P. Swift, J. A. Moreira, J. G. Millar, and L. M. Hanks "(R) -3-Hydroxyhexan-2-one Is a Major Pheromone Component of Anelaphus inflaticollis (Coleoptera: Cerambycidae)," Environmental Entomology 38(5), 1462-1466, (1 October 2009). https://doi.org/10.1603/022.038.0514
Received: 24 November 2008; Accepted: 1 July 2009; Published: 1 October 2009
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