cuticular hydrocarbons

Cuticular hydrocarbons are long-chain molecules found on the surface of insects and some other arthropods. They form a protective, waxy layer called the cuticle, helping prevent water loss and providing chemical communication signals. These hydrocarbons vary between species and individuals, allowing insects to recognize mates, identify members of their colony, or signal their health status. Their composition can also change in response to environmental conditions or physiological states, making them important in survival and social interaction.