Cuticular hydrocarbons (CHCs) were analyzed using GC and GC-MS, and compared with developmental stages of the Lycorma delicatula. Total Carbon numbers on all developmental stages are 21-36, and composition numbers are 51. On the whole, Carbon numbers increased as passed times on developmental stages. Except for eggs, Lycorma delicatula consisted of n-heptacosane on almost all developmental stages, and followed by n-nonacosane. Eggs, however, consisted of 9-; 11-; 13- methylheptacosane. From the above results, CHCs on developmental stages of the Lycorma delicatula consisted of n-alkane with saturated hydrocarbons (36%), followed mono- (34%) or di- (21%) methylalkanes. Above this, CHCs consisted of tri- methylalkanes (3.9%) and olefines (2.3%) that have double bond. The major constituents of CHCs on the developmental stages of Lycorma delicatula is differently proportioned, but hardly showed the difference in their composition.

• Jeong-Eun Lee(Dept. of Plant Medicine, Chungbuk National University)
• Sun-Ran Cho(Dept. of Plant Medicine, Chungbuk National University)
• Sun-Kook Kim(Chungbuk Provincial Agricultural Research and Extension Services)
• Changmann Yoon(Dept. of Plant Medicine, Chungbuk National University)
• Gil-Hah Kim(Dept. of Plant Medicine, Chungbuk National University)