The microstructures of chafer cuticle are observed with a scanning electron microscope (SEM).It shows that the cuticle is a kind of chitin-fiber-reinforced composite with protein matrix.

• 摘要运用扫描电镜实验观察了金龟子外甲壳内部的微结构，发现其类似于人造纤维增强复合材料，具有几丁质纤维增强角质化蛋白质基体的结构特征。