Transgenic RNAi Project, Harvard Medical School. These TRiP lines were created using the pVALIUM10 vector; they have been contributed to the Bloomington Drosophila Stock Center. The TRiP stocks are in a y v; attP2 genetic background (genotype: y1 v1; P{y+t7.7=CaryP}attP2). Current TRiP stocks have the genotype: y1 v1; P{y+t7.7 v+t1.8=TRiP.JFXXXXX}attP2 or y1 v1; P{y+t7.7 v+t1.8=TRiP.HMXXXXX}attP2, where JF are TRiP stocks made during our pilot project at Janelia Farm and HM are TRiP stocks made at Harvard Medical School.