Expression of ciWT.P.Scer\UAS.T:Ivir\HA1 under the control of Scer\GAL471B results in expansion of the wing disc in the wing blade region, with the greatest expansion being in the posterior compartment. Percentage embryonic lethality in lines expressing ciScer\UAS.cPa under the control of various Scer\GAL4 driver lines: 6% (Scer\GAL4e22c driver), 12% (Scer\GAL4ptc-559.1 driver) and 12% (Scer\GAL4en-e16E driver). Percentage larval/pupal lethality in lines expressing ciScer\UAS.cPa under the control of Scer\GAL471B : 6%.