ScerGAL4HB4-93 drives expression in neurons that densely innervate the subesophageal ganglion and sparsly the larval antennal lobes (AL). The cell bodies of labeled neurons are found in two clusters, some ventrolateral and a larger number dorsolateral to the AL.
Expression of ScerGAL4HB4-93 is seen in cell bodies found in the local interneuron cluster located lateral and dorsolateral to the antennal lobe. Most labelled cells are ipsilaterally projecting interneurons.