All flies were raised on standard food at 25°C with a 12-hour light:12-hour dark cycle, except for the Tubulin-Gal80ts experiments to induce expression at different developmental stages, where flies were raised at either 18° or 29°C. Male and female flies were collected at eclosion and aged as specified before performing experiments. VT030559-GAL4 was obtained from the Vienna Drosophila Resource Center stock center. VAChT[MI08244] (#55439), nsyb-GAL4 (#51941), VGluT-GAL4 (#60312), VGluT-p65-AD (#82986), VGluT-GAL4-DBD (#60313), ChAT-GAL4 (#60317), GH146-GAL4 (#30026), GMR81C04-GAL4 (#48378), VGAT-GAL4 (#84696), UAS-miR-190-sponge (#61397), UAS-scramble-sponge (#61501), UAS-Flp (#4539), UAS-CD4-GFP1–10 (#93016), VGluT-Gal80 (#58448), and tubulin-Gal80ts (#7016) were obtained from Bloomington Drosophila Stock Center. UAS-myrGFP-2A–RedStinger (27 (link)) was obtained from the Ganetzky laboratory at University of Wisconsin, and UAS-UNC84::GFP was from G. Henry at Janelia Research Campus. Table S1 lists all the lines used in this study with their source and whether their mRNA contains the native gene’s 3′UTR. Table S2 lists the full genotypes of all lines used in this study by figure panel.