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J Chem Ecol

Title:		Species discrimination in five species of winter-flying geometrids (Lepidoptera) based on chirality of semiochemicals and flight season
Author(s):		Szocs G; Toth M; Francke W; Schmidt F; Philipp P; Konig WA; Mori K; Hansson BS; Lofstedt C;
Address:		"Plant Protection Institute of the Hungarian Academy of Sciences, H-1525, Budapest, Pf 102, Hungary"
Journal Title:		J Chem Ecol
Year:		1993
Volume:		19
Issue:		11
Page Number:		2721 - 2735
DOI:		10.1007/BF00980703
ISSN/ISBN:		0098-0331 (Print) 0098-0331 (Linking)
Abstract:		"Enantiomer separation of (6Z,9Z)-cis-3,4-epoxynonadecadiene and (3Z,9Z)-cis-6,7-epoxynonadecadiene could be achieved using chiral high-resolution gas chromatography and a cyclodextrin-bond column. (3Z,9Z)-(6R,7S)-Epoxynonadecadiene was identified from ovipositor extracts ofColotois pen-Naria, while inErannis defoliaria the 6S,7R-enantiomer was found. In field trapping tests pure synthetic enantiomers caught only conspecific males of these species. (3Z,6Z,9Z)-Nonadecatriene was found in both species, while the presence of (3Z,6Z,9Z)-heneicosatriene was indicated inC. Pennaria only. A 10ratio10ratio3 blend of (3Z,9Z)-(6R,7S)-epoxynonadecadiene, (3Z,6Z,9Z)-heneicosatriene, and (3Z,6Z,9Z)-nonadecatriene was found to be optimal for catchingC. Pennaria, whileE. Defoliaria males were optimally caught by a 1ratio1 mixture of (3Z,9Z)-(6S,7R)-epoxynonadecadiene and (3Z,6Z,9Z)-nona-decatriene. (6Z,9Z)-(3S,4R)-Epoxynonadecadiene was identified from ovipositor extracts ofAgriopis (Erannis) aurantiaria. In field tests the pure enantiomer proved to be a highly specific sex attractant for both the late autumn/early winter flyingA. Aurantiaria and the late winter/early spring flyingA. Leucophearia. Males ofAgriopis marginaria, which fly in late winter/early spring, were attracted to (3Z,9Z)-(6S,7R)-epoxynonadecadiene. The addition of (3Z,6Z,9Z)-nonadecatriene to theS,R-enantiomer increased captures. Optimal catches were recorded with a 10ratio3 epoxide-hydrocarbon blend. Enantiomer specificity in all species was confirmed in EAG measurements"
Keywords:
Notes:		"PubMed-not-MEDLINESzocs, G Toth, M Francke, W Schmidt, F Philipp, P Konig, W A Mori, K Hansson, B S Lofstedt, C eng 1993/11/01 J Chem Ecol. 1993 Nov; 19(11):2721-35. doi: 10.1007/BF00980703"