Insemination rate of Glossina morsitans morsitans female flies mated with Glossina morsitans morsitans tsetse males that emerged from the irradiation and transportation of 22- and 29-day-old pupae groups. Pupae were irradiated and transported at either 22 or 29 days of age from pupation. Comparison of insemination rates between treatment groups at each age. The graphs represent the minimum, first quartile, median, third quartile and maximum for each treatment. Bars indicated by the same lower-case letter or number did not differ significantly at the 5% level.