Neurosecretory cells that express sNPF and corazonin. A. The source of the sNPF-Gal4 expressing axon terminations in the ring gland can be traced to a set of three neurons (NC) dorsal to the mushroom body calyces (Ca). B. The axons from the three neurosecretory cells (arrows) can be followed to the corpora cardiaca (CC). In the CC there appears to be ectopic expression of sNPF-Gal4 in the intrinsic AKH producing cells. KC, Kenyon cells of the mushroom body. C1-3. The three sNPF-expressing neurosecretory cells also display corazonin-immunoreactivity (magenta).