Fig. 1.

2D flight tracks of moths in response to the mixture stimuli. (A Left) Flight tracks in response to D. wrightii floral scent, mixture 4, mixture 9, and odorless mineral-oil control. Three representative tracks were chosen using random numbers from among the digitized treatment groups. Circles correspond to 16-ms intervals. (A Center) The cumulative transit probabilities for all moths in the treatment groups (n = 22 moths per treatment). (A Right) The track angles for all moths in each treatment group. Note that the D. wrightii floral scent and mixture 4 elicited anemotactic behavior in the moths. In contrast, mixture 9 elicited random flight as did the odorless (mineral oil) control. (B) The percentage of moths that fed from the paper flowers emitting the different mixtures. Odorants within each partial mixture are shown below the histogram (n = 22 moths per mixture treatment). Asterisks denote a significant difference from the mineral-oil control (G test: P < 0.05).