title: Species-specific, two-component, volatile signals in two sympatric ant-lion species:Synclysis baetica andAcanthaclisis occitanica (Neuroptera, Myrmeleontidae).
abstract: The thoracic glands of males in two ant-lion speciesSynclysis baetica andAcanthaclisis occitanica, which occur sympatrically in Israel, were found to contain a volatile secretion with two-component blends of nerol oxide and (R,Z)-6-tridecen-2-ol (approx 1∶5) and nerol oxide and 10-homonerol oxide (approx. 1∶2), respectively. Chemical analyses were performed using gas chromatography-mass spectrometry, chiral gas chromatography, and ozonolysis, and the proposed structures were confirmed by synthesis. The species-specific, few-component volatile signals are thought to function as a reproductive isolation mechanism between the two sympatric species. Biochemical relationships between the nerol derivatives and between the unsaturated secondary alcohols are discussed.
authors.affiliation: Department of Chemical Ecology, University of Göteborg, Reutersgatan 2 C, S-413 20, Göteborg, Sweden.
authors.forename: G
authors.initials: G
authors.lastname: Bergström
authors.forename: A B
authors.initials: AB
authors.lastname: Wassgren
authors.forename: H E
authors.initials: HE
authors.lastname: Högberg
authors.forename: E
authors.initials: E
authors.lastname: Hedenström
authors.forename: A
authors.initials: A
authors.lastname: Hefetz
authors.forename: D
authors.initials: D
authors.lastname: Simon
authors.forename: T
authors.initials: T
authors.lastname: Ohlsson
authors.forename: J
authors.initials: J
authors.lastname: Löfqvist