%0 Journal Article %T Identification of defensive compounds in metathoracic glands of adults of the stink bug Dichelops melacanthus (Hemiptera: Pentatomidae) %A Marques %A Francisco A. %A Wendler %A Edison P. %A Maia %A Beatriz Helena L. N. Sales %A Ventura %A Maur¨ªcio U. %A Arruda-Gatti %A Iara Cintra %J Journal of the Brazilian Chemical Society %D 2007 %I Sociedade Brasileira de Qu¨ªmica, SBQ %R 10.1590/S0103-50532007000600020 %X the contents of metathoracic glands of adults of the stink bug dichelops melacanthus (hemiptera: pentatomidae) were analyzed. compounds were identified by gas chromatography (gc), coupled gc-mass spectrometry and matching retention indices and mass spectra with those of authentic samples. tridecane was the major component followed by lesser and approximately equal amounts of (e)-4-oxo-2-hexenal and (e)-2-octenal. other compounds identified include (e)-2-hexenal, decane, (e)-2-hexenyl acetate, undecane, (e)-4-oxo-2-octenal, dodecane, (e)-2-octenyl acetate, 1-tridecene, tetradecane and pentadecane. %K dichelops melacanthus %K defensive compounds %K short-chain unsaturated aldehydes %K unsaturated acetates %K tridecane. %U http://www.scielo.br/scielo.php?script=sci_abstract&pid=S0103-50532007000600020&lng=en&nrm=iso&tlng=en