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| Emperor Gum Moth |
Moths
Moths are so varied it is hard to give a general description. They can be distinguished from butterflies by several features. Butterfly antennae have little clubs at the tips, whereas moths lack the club, having either filamentous or feathery antennae. Butterflies usually fly during the day and moths at night. Some butterflies are crepuscular though and will sometimes come to lights at night, and many moths are day-flying. Most butterflies have thin bodies, devoid of the dense covering of hairs found on the thick-set bodies of moths. There are exceptions to this too. Butterflies generally hold their wings above their bodies when at rest. Moths tend to hold the horizontal, flat against the substrate. You guessed it! - there are exceptions to this rule.
Most moths have a wing-coupling device called a frenulum that allows both sets of wings to operate together. Butterflies lack this feature . . . . . except! There is a species of Australian skipper, the regent skipper, Euschemon rafflesia, which displays a frenulum in the male sex only. Does this make the male regent skipper a moth and the female regent skipper a butterfly?