While some insects, like aquatic insects, breathe through their skin, the majority of insects breathe through a system of air-filled tubes called tracheae. These tracheae are connected to openings in the insect's body called spiracles, which allow oxygen to enter and carbon dioxide to exit.
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Aquatic Insects: Some aquatic insects, like dragonfly nymphs and mosquito larvae, can breathe through their skin. This is called cutaneous respiration.
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Terrestrial Insects: Most terrestrial insects, however, breathe through tracheae. This system allows them to take in oxygen from the air and transport it directly to their tissues.
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Other Insects: The caterpillars of the Cana leaf roller (Calpodes ethlius) have a transparent skin through which they can breathe.
It is important to note that while some insects can breathe through their skin, this is not the primary method of respiration for most insects. The tracheal system is a much more efficient way for insects to breathe, allowing them to survive in a wide range of environments.
