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J Chem Ecol

Title:		"Sex pheromone of the saturniid moth, Hemileuca burnsi, from the western Mojave Desert of California"
Author(s):		McElfresh JS; Millar JG;
Address:		"Department of Entomology, University of California, Riverside, CA 92521, USA. steve.mcelfresh@ucr.edu"
Journal Title:		J Chem Ecol
Year:		2008
Volume:		20080723
Issue:		9
Page Number:		1115 - 1124
DOI:		10.1007/s10886-008-9521-4
ISSN/ISBN:		0098-0331 (Print) 0098-0331 (Linking)
Abstract:		"The sex pheromone blend of Hemileuca burnsi (Lepidoptera: Saturniidae) from the western Mojave Desert was determined to be a combination of (10E,12Z)-hexadecadien-1-yl acetate (E10,Z12-16:Ac), (10E,12Z)-hexadecadien-1-ol (E10,Z12-16:OH), (10E,12E)-hexadecadien-1-yl acetate (E10,E12-16:Ac), and hexadecyl acetate (16:Ac). (10E,12Z)-Hexadecadienal (E10,Z12-16:Ald) was tentatively identified in pheromone gland extracts based on electroantennographic responses and, when added to the above blend, it enhanced trap captures at low doses. The mean ratio of the compounds in extracts of pheromone glands was 100:23:232:14:0.4 (E10,Z12-16:Ac: E10,E12-16:Ac: 16:Ac: E10,Z12-16:OH: E10,Z12-16:Ald). Field trials indicated that although E10,Z12-16:Ac and E10,Z12-16:OH were essential for attraction, the two-component blend was not attractive by itself. Addition of the three other compounds was necessary for maximum attraction, rendering this the most complicated pheromone blend described for a Hemileuca species to date. Similarities between the sex pheromone of H. burnsi and that of the allopatric Hemileuca electra electra and differences between the blends of H. burnsi and that of the sympatric H. electra mojavensis support a case for reproductive character displacement in the pheromone communication channel of H. electra"
Keywords:		"Animals California Chromatography, Gas Desert Climate Electrophysiology Exocrine Glands/chemistry Female Male Moths/growth & development/*physiology Sex Attractants/*isolation & purification Sexual Behavior, Animal/physiology Species Specificity;"
Notes:		"MedlineMcElfresh, J Steven Millar, Jocelyn G eng Research Support, Non-U.S. Gov't 2008/07/24 J Chem Ecol. 2008 Sep; 34(9):1115-24. doi: 10.1007/s10886-008-9521-4. Epub 2008 Jul 23"