Expression of waplAG.Scer\UAS under the control of Scer\GAL4da.G32 may result in lethality (either at the early pupal or pharate adult stage, depending on the insertion line used). Adults show a number of mutant phenotypes, including defects in the posterior abdomen and abnormal or extra sternopleural bristles. Sex comb teeth on the second legs have been seen in pharate adults.