How do the antennae of butterflies differ from the antennae of moths?

The antennae of butterflies and moths, both members of the order Lepidoptera, serve as essential sensory organs for detecting odors via microscopic receptors called sensilla.21

The primary differences between them are as follows:

• Butterflies: These insects typically possess simple, slender antennae that terminate in a distinct club-shaped tip, where the majority of their sensory receptors are concentrated.21
• Moths: While some moths have slender or tapering antennae, many species feature antennae with significantly enlarged surface areas. These are often described as thick, comblike, or feathery, which enhances their ability to detect scents—a trait particularly common in males.21

These multisegmented appendages are vital for the survival of these insects, as they allow them to navigate their environments and locate resources or mates.1