FMRFamides and FMRFamide-like peptides are neuropeptides. In larvae, expressed in the CNS and thoracic perisymapthetic organs (tPSO) but not in the ring gland or abdominal perisymapthetic organs (aPSO) (at protein level). In adults, expressed in brain and thoracic-abdominal ganglion but not in corpora cardiaca and corpora allata (at protein level). Detected in larvae and adults. Belongs to the FARP (FMRFamide related peptide) family.