ScerGAL4cb46 drives expression in the embryonic CNS and in a few scattered other embryonic cells, in the larval CNS including the brain, and in the adult testis. During oogenesis, ScerGAL4cb46 drives expression in terminal filaments and/or female germline stem cells, in all follicle cells at stages S1-10, in a few scattered follicle cells from stages S10-14, in oocytes at stages S10-14, and in nurse cells.