ISSN:
1573-1561
Keywords:
Lepidoptera
;
Lymantriidae
;
Lymantria fumida
;
Lymantria monacha
;
nun moth
;
sex pheromone
;
periodicity
;
calling behavior
;
reproductive isolation
;
disparlure
;
(7R,8S)-cis-7,8-epoxy-2-methyloctadecane
;
(7S,8R)-cis-7,8-epoxy-2-methyloctadecane
;
2-methyl-Z7-octadecene
;
(7R,8S)-cis-7,8-epoxy-octadecane
;
(+)-monachalure
Source:
Springer Online Journal Archives 1860-2000
Topics:
Biology
,
Chemistry and Pharmacology
Notes:
Abstract Extracts of pheromone glands from female Lymantria fumida were analyzed by coupled gas chromatographic–electroantennographic detection (GC-EAD) and by coupled GC–mass spectrometry (MS). The two compounds that elicited responses from male L. fumida antennae were identified as cis-7,8-epoxy-2-methyloctadecane (disparlure) and 2-methyl-Z7-octadecene (2me-Z7–18Hy). Field experiments in northern Japan demonstrated that synthetic (7R,8S)-cis-7,8-epoxy-2-methyloctadecane [(+)-disparlure] and 2me-Z7–18Hy are synergistic sex pheromone components of L. fumida. (7S,8R)-cis-7,8-Epoxy-2-methyloctadecane [(−)-disparlure] had no behavioral effect on male L. fumida. Traps baited with (+)-disparlure and 2me-Z7–18Hy captured male L. fumida between 21:00 and 24:00 hr, whereas traps baited with (+)-monachalure [(7R,8S)-cis-7,8-epoxy-octadecane], (+)-disparlure and 2me-Z7–18Hy attracted males of the nun moth, L. monacha L., between 02:00 and 04:00 hr. Both temporal separation of pheromonal communication and specificity of pheromone blends seem to contribute to the reproductive isolation of sympatric and coseasonal L. fumida and L. monacha.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1023/A:1020873807864
