ScerGAL4NP2113 drives expression in gustatory receptor neurons in around two-thirds of labellar pseudotracheal taste pegs which project to the LS1 and LS2 regions of the labial sensory center as well as to regions PMS1-3 of the posterior maxillary sensory center and the anteriormost region of the anterior maxillary sensory center (AMS1). Expression is also observed in non-neural cells in the lateral part of the labellum. Faint labeling is detected in some neurons of the maxillary palpus.