Expression of sdΔ87.Scer\UAS driven by Scer\GAL4vg.boundary can either rescue the sdETX4 and sd58d defective wing phenotypes, or can actually make these phenotypes more severe, depending on the sdΔ87.Scer\UAS insertion line used. The effect of these insertions is also temperature sensitive, with certain insertions suppressing the sdETX4 and sd58d phenotypes at one temperature and enhancing these phenotypes at another.