Gr68a^{dsRNA.Scer\UAS}; Scer\GAL4^Gr68a.PB males show a significant reduction in mating performance both with regard to the fraction of nonmaters and the increase in latency time. This phenotype is significantly more severe in 11-17 day old males than 4-7 day old males. As with Ctet\TeTxLC^TNT.Scer\UAS; Scer\GAL4^Gr68a.PB males mating initiation is slightly increased in these flies, but the time spent on later courtship steps (wing extension/vibration and attempted copulation) are significantly decreased.