The cuticle of the adult wing blade is dull and opaque in flies expressing mgl^{dsRNA.Scer\UAS.cKa} under the control of Scer\GAL4^C-765.

When mgl^{dsRNA.Scer\UAS.cKa} is expressed under the control of Scer\GAL4^en-e16E, flies emerge with intact wings. However, after several days, the posterior wing blade appears frayed and broken, while the anterior part of the wing remains intact, suggesting that the cuticle secreted by cells expressing Scer\GAL4^en-e16E is more fragile than normal.

Expression of mgl^{dsRNA.Scer\UAS.cKa} under the control of Scer\GAL4^ap-md544 does not perturb the formation of the outer envelope or epicuticle of the dorsal wing cuticle during pupal development. The thickness of the developing procuticle appears normal, but fissures in the distal procuticle are seen, which become more numerous with time, such that the procuticle of adult wings is dramatically cracked and split.