Eclosion hormone is an insect neuropeptide that triggers the performance of ecdysis behaviour, which causes shedding of the old cuticle at the end of a molt [1], [2].

1: Integration of endocrine signals that regulate insect ecdysis. Mesce KA, Fahrbach SE; Front Neuroendocrinol 2002;23:179-199. PMID:11950244

2: Complete structure of eclosion hormone of Manduca sexta. Assignment of disulfide bond location. Kataoka H, Li JP, Lui AS, Kramer SJ, Schooley DA; Int J Pept Protein Res 1992;39:29-35. PMID:1634328