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J Chem Ecol

Title:		"Sex pheromone components of the spring hemlock looper,Lambdina athasaria (Walker) (Lepidoptera: Geometridae)"
Author(s):		Gries R; Gries G; Li J; Maier CT; Lemmon CR; Slessor KN;
Address:		"Department of Biological Sciences, Simon Fraser University, V5A 1S6, Burnaby, British Columbia, Canada"
Journal Title:		J Chem Ecol
Year:		1994
Volume:		20
Issue:		10
Page Number:		2501 - 2511
DOI:		10.1007/BF02036187
ISSN/ISBN:		0098-0331 (Print) 0098-0331 (Linking)
Abstract:		"Two methylated hydrocarbons, 7-methylheptadecane (7) and 7,11-dimethylheptadecane (7,11), are female sex pheromone components of the spring hemlock looper (SHL),Lambdina athasaria (Walker). Compounds extracted from female pheromone glands were identified by coupled gas chromatographic-electroantennographic detection (GC-EAD) and coupled GC-mass spectrometry (GC-MS) in selected ion monitoring mode. In field trapping experiments, (7) and (7,11) by themselves were behaviorally inactive, but in combination attracted numerous male moths. (5,11)-Dimethylheptadecane (5,11) was detected in female SHL pheromone gland extracts, but did not enhance attraction to the binary blend of (7) and (7,11). The sex pheromone of SHL is related to that of congeneric eastern hemlock looper (EHL),Lambdina fiscellaria fiscellaria (Guen.) [(5,11) and 2,5-dimethylheptadecane (2,5)] and western hemlock looper (WHL),L.f. lugubrosa (Hulst) [(5,11), (2,5) and (7)]. Specificity of the pheromonal blend, spatial separation of coseasonal EHL and WHL, and temporal separation of sympatric EHL and SHL contribute to reproductive isolation"
Keywords:
Notes:		"PubMed-not-MEDLINEGries, R Gries, G Li, J Maier, C T Lemmon, C R Slessor, K N eng 1994/10/01 J Chem Ecol. 1994 Oct; 20(10):2501-11. doi: 10.1007/BF02036187"