Insertion approximately 0.7kb upstream of Snoo.
Flies expressing SnooGS18054 under the control of Scer\GAL4Bx-MS1096 have smaller wings than normal and the wings are upturned.
Flies expressing SnooGS18054 under the control of Scer\GAL432B have smaller wings than normal. The wings show distal truncations of the longitudinal veins and loss of crossveins.
Flies expressing SnooGS18054 under the control of Scer\GAL4ap-md544 have an unusually shaped notum (due to failure of dorsal thoracic closure) and have an upturned wing phenotype.