Expression of Zzzz\tslScer\UAS.P\T.cDa under the control of Scer\GAL4mat.αTub67C.T:Hsim\VP16 results in embryos with cuticle defects: in mild cases, fusion of abdominal denticle belts is seen, while in severe cases, head involution fails and there is a substantial hole in the ventral cuticle.