Abstract
We report the identification of a novel pheromone structure from males of the cerambycid beetle Tylonotus bimaculatus Haldeman (Cerambycinae: Hesperophanini), a species native to eastern North America. Volatiles collected from adult males contained (2S,4E)-2-hydroxyoct-4-en-3-one (71 %), (3R,4E)-3-hydroxyoct-4-en-2-one (15 %), (E)-4-octen-2,3-dione (13 %), and 2,3-octanedione (1.5 %). Four independent field bioassays with synthetic compounds confirmed that adults of both sexes were attracted by the racemate of the major component, (E)-2-hydroxyoct-4-en-3-one. No other cerambycid species were attracted in significant numbers. Attraction of both sexes is consistent with the male-produced pheromones of many other species in the subfamily Cerambycinae, but T. bimaculatus is unusual in having a pheromone chemistry that is so far unique among species in that subfamily.
Original language | English (US) |
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Pages (from-to) | 670-677 |
Number of pages | 8 |
Journal | Journal of Chemical Ecology |
Volume | 41 |
Issue number | 7 |
DOIs | |
State | Published - Jul 7 2015 |
Keywords
- 3-hydroxy-4-octen-2-one
- Aggregation pheromone
- Cerambycinae
- Longhorned beetle
- Semiochemical
ASJC Scopus subject areas
- Ecology, Evolution, Behavior and Systematics
- Biochemistry