Insertion of P{UAS-bab2.4} into the 5' regulatory region of ftz-f1, such that a low level of bab2 expression is driven by the ftz-f1 promoter, independently of Scer\GAL4.
adult cuticle & abdominal segment 5 | male
adult cuticle & abdominal segment 6 | male
Males show loss of male specific pigmentation, with non-sex specific pigmentation unaffected.