270 

 further implications with respect to diet and mosquito attraction, where the 

 consumption of foods enhancing mosquito attraction may increase potential 

 attractants on the skin. Further studies involving alcohol or food consumption and 

 emanation from the skin were not conducted for this dissertation. 



The second component of interest is l-methoxy-4(l-propenyl)benzene 

 (anethole). The reason this compound was noted is due to previous field studies in 

 which methoxybenzene (anisole) gave favorable response to the Culex nigripalpus 

 species of mosquito. Should the chemosensilla of this mosquito be compound 

 specific with some class dependency, then it would be beneficial to test similar 

 structures which are present on the skin. Anisole was not observed in emanations 

 analyzed for this work; however, anethole is similar in base structure. 



Case Study Comparison of Emanations between Subjects 



The comparison studies between subjects were performed not only for 

 comparative purposes; the data were also examined for compounds which decreased 

 in relative abundance over a period of time, typically 6-8 hours. This was 

 accomplished by placing handled beads in a tube open to air. The subjects were 

 chosen based upon their relative attraction of Ae. aegypti in an olfactometer bio- 

 assays. The subjects were Mr. Dan Smith, who has been found to be at the high 

 extreme with respect to attraction percentage (c. 70%), and Mr. Carl Schreck, who 

 has been found to be at the low end (c. 20%). The RIC traces for one such 



