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J Forensic Sci

Title:		Electrophysiological and behavioral responses of Thanatophilus sinuatus Fabricius (Coleoptera: Silphidae) to selected cadaveric volatile organic compounds
Author(s):		Dekeirsschieter J; Frederickx C; Lognay G; Brostaux Y; Verheggen FJ; Haubruge E;
Address:		"Department of Functional and Evolutionary Entomology, Gembloux Agro-Bio Tech, University of Liege, Passage des Deportes 2, Gembloux, B-5030, Belgium. jdekeirsschieter@ulg.ac.be"
Journal Title:		J Forensic Sci
Year:		2013
Volume:		20130703
Issue:		4
Page Number:		917 - 923
DOI:		10.1111/1556-4029.12123
ISSN/ISBN:		1556-4029 (Electronic) 0022-1198 (Linking)
Abstract:		"Soon after death, carcasses release volatile chemicals that attract carrion insects including Silphidae. Nevertheless, it is not known which chemical cues are involved in the attractiveness of the carcass. So far, little information is available on the chemical ecology of carrion beetles, particularly concerning the subfamily of Silphinae. The biological role of selected cadaveric volatile organic compounds including dimethyldisulfide (DMDS), butan-1-ol, n-butanoic acid, indole, phenol, p-cresol, putrescine, and cadaverine on the silphine species, Thanatophilus sinuatus Fabricius, was investigated using both electrophysiological and behavioral techniques. Among the tested cadaveric compounds, butan-1-ol and DMDS elicited the strongest electroantennography (EAG) from both T. sinuatus male and female antennae. In a two-arm olfactometer, males and females were significantly attracted to DMDS for both tested doses, whereas only males were attracted to p-cresol at 100 ng. Putrescine was repellent to males at the dose of 1 mug"
Keywords:		Analysis of Variance Animals Arthropod Antennae Coleoptera/*physiology *Electrophysiological Phenomena Entomology Feeding Behavior/*physiology Female Forensic Pathology Male Olfactometry Postmortem Changes Sex Factors Volatile Organic Compounds/*chemistry;
Notes:		"MedlineDekeirsschieter, Jessica Frederickx, Christine Lognay, Georges Brostaux, Yves Verheggen, Francois J Haubruge, Eric eng 2013/07/05 J Forensic Sci. 2013 Jul; 58(4):917-23. doi: 10.1111/1556-4029.12123. Epub 2013 Jul 3"