(A) Total sleep time: pdm3 knockdown with spatially restricted GAL4 drivers with expression in sleep/circadian circuitry or glial expression (n ≥ 8 per genotype/age). (B) Spatial mapping screen of FlyLight GAL4 lines with adult CCX expression patterns (n ≥ 8 per genotype/age). (C) Total sleep time in R93F07-GAL4 > UAS pdm3 RNAi versus controls (n = 41, 32, 40, 40, 40, 40 left to right). (D) At the mid-pupal stage, R93F07-GAL4 is expressed in the FSB (top) as well as the ellipsoid body (EB, bottom). (E) Innervation density of TH+ neurites in the adult dFSB (labeled by TH-LexA >LexAOp GFP) with R93F07-GAL4 driving pdm3 RNAi (n = 12 controls, 10 pdm3 RNAi). ****p<0.0001, ***p<0.001, **p<0.01, *p<0.05; multiple Student’s t tests with Holm-Sidak correction, alpha = 0.05 (A, C), unpaired two-tailed Student’s t test plus Welch’s correction (E).