Characterization of the cuticular lipids of the larvae and adults of the pecan weevil, Curculio caryae
1991
Espelie, K.E. | Payne, J.A.
Cuticular lipids were isolated and identified from larvae, adult females and adult males of the pecan weevil, Curculio caryae. The surface lipids of the larvae were dominated by triacylglycerols (49%) and hydrocarbons (41%) with glycerol trihexanoate and 2-methyloctacosane the most prevalent components in these two classes of compounds. Methyl-branched hydrocarbons dominated the surface lipids of the adult weevils with the most abundant being 9-, 11-, 13- and 15-methylnonacosane and 9,13- and 11,15-dimethylnonacosane. Methylketones (2-nonadecanone, 2-heneicosanone, and 2-tricosanone) comprised 1% and 3%, respectively, of the adult male and female cuticular lipids. These methylketones and glycerol trihexanoate have not previously been found in insect cuticular lipids.
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