FMRFamides and FMRFamide-like peptides are neuropeptides. Expressed in the CNS but not in the ring gland, midgut, thoracic perisymapthetic organs (tPSO) or abdominal perisymapthetic organs (aPSO) (at protein level). Detected in larvae. Belongs to the FARP (FMRFamide related peptide) family.