| Insects | Crustaceans | ||
---|---|---|---|---|
 | Cuticle layers | Cuticle layers | Organic phase | Mineral phase |
Pre-ecdysial layers | Epicuticle | Epicuticle | Lipoproteic | Calcite |
 | Exocuticle | Exocuticle | Chitin-protein | Calcite |
Post-ecdysial layers (Endocuticle) | Endocuticle (with mesocuticle) | Principle layer | Chitin-protein | Calcite |
 |  | Membranous layer | Chitin-protein | -- |