Sample responses of pheromone sensitive sensilla for parent and F
hybrids of O. nubilalis. Traces are scaled to 1.2 mV and approximately 3 s. Bars at the base of all traces show the location of the 0.5 s stimulus pulse. Left traces show response to the E pheromone isomer and right traces show response to the Z. Bar graphs on right show the relative amplitude ratio % for the first five spikes in the traces shown.