Mothula

In A Link to the Past
Mothula guards the Crystal in the Skull Dungeon in the Dark World of A Link to the Past. He is a large moth which uses Fire to attack Link. This is also the best way to defeat him, the Fire Rod damages him a lot. But it also works with the sword. When he is defeated he leaves a Heart Container and the Third Crystal behind in which the violet maiden is imprisoned.

In Oracle of Seasons
Mothula guards the Bright Sun Essence in the Poison Moth's Lair of Oracle of Seasons. He is a large moth which uses Fire to attack Link. He also will send out baby moths to attack any aggressor. Using the Roc's Feather to jump to the platforms in the middle of arena, and using the sword when it lands, Link was able to defeat the giant moth. When he is defeated he leaves a Heart Container and the Bright Sun Essence, which provides the warm rays which let young shoots grow quickly

In The Wind Waker
The Mothula is an enemy in The Wind Waker found in the Forbidden Woods. Not all Mothulas can fly, though they all can shoot out Morths, hampering Link's movement and making it difficult for him to attack. The flying variety will lose their wings to the Boomerang or will become stunned by a Deku Leaf blast, which allows Link to attack them. If you want to finish them in one hit use a fire arrow.