Distribution of spermathecal fill in Glossina morsitans morsitans (Gmm) females mated with Gmm males that emerged from the irradiation and transportation (relative to the controls), of 22- and 29-day-old pupae groups. Comparison of spermathecal fill among treatments of: (a) Females inseminated by Gmm male flies that were irradiated and transported as pupae at the age of 22 days; (b) Females inseminated by Gmm male flies that were irradiated and transported as pupae at the age of 29 days.