title: Cuticular hydrocarbons of the screwworm,Cochliomyia hominivorox (Diptera: Calliphoridae) : Isolation, identification, and quantification as a function of age, sex, and irradiation.
abstract: A novel series of 2,X-dimethylalkanes were isolated and identified. The nonpolar fraction of the surface lipids secreted by the adult (5-day-old) screwworm,Cochliomyia hominivorax, contains over 130 different hydrocarbons comprising normal alkanes (32% of the total hydrocarbon), branched alkanes (53%), and monoalkenes (11%). Branched alkanes included monomethylalkanes with substitution in all possible positions except for 4-methylalkanes, internally branched dimethylalkanes, and 2,X- and 3,X-dimethylalkanes. At emergence, adults of both sexes of the 009 strain have nearly identical gas Chromatographic profiles, which diverge as the insect ages. Irradiation of pharate pupae does not affect the hydrocarbon produced.
authors.affiliation: ARS-USDA, Biosciences Research Laboratory, 58105, Fargo, North Dakota.
authors.forename: J G
authors.initials: JG
authors.lastname: Pomonis