Flies expressing simjScer\UAS.cKa under the control of Scer\GAL4ptc-559.1 lack scutellar notum bristles. The wings are smaller in size than normal but are normally patterned. The legs have elongation defects and often resemble stumps.
simjUAS.cKa/Scer\GAL4arm.PS partially rescues simj7/simj10