The Butterfly is a passive Mob commonly found in Grassland biomes. They spawn from Flowers (including Evil Flowers) and will slowly fly around, often landing on other Flowers. At dusk, they always land on a Flower to despawn. Butterflies do not spawn during Winter or in Caves.
When killed, Butterflies drop Butterfly Wings (98% chance) or Butter (2% chance). Butterfly Wings can be eaten to restore Health, or used in a Crock Pot to cook Butter Muffins. As inventory items, they can be used to plant Flowers, which can spawn additional Butterflies or improve the production of Honey in Bee Boxes.
A Butterfly spawns once about every 15 seconds from a flower located between 6 units and 25 units away from the player. It will not spawn if there are 4 Butterflies within 64 units of the player.
See also: Butterfly Farm
Butterflies will avoid the player when approached, making them difficult to attack using melee weapons. The best time to attack Butterflies is when they stop to land on Flowers, where they will rest for a few seconds. Hunting in an area with many Flowers will provide many opportunities to hit them. Butterflies also sometimes flutter around in place and can be easily hit. It should also be noted that when a player gets close to a butterfly and it flies away from the player, the player can move out of its "range" and then it will flutter around for a few seconds and can be killed easily. Walking close to a Flower seems to spawn Butterflies more frequently.
It is possible to hit a moving Butterfly in close quarters by approaching it and pressing force-attack button (Ctrl+F). Watch the Butterfly's shadow to determine its position. The Walking Cane makes this incredibly easy.
When caught using a Bug Net, a live Butterfly will become an item in the player's inventory (stacks to 20). With the Bug Net equipped, pressing the Spacebar automatically chases and catches Butterflies rather than picking nearby Flowers.
Butterflies die in one hit from any weapon. Butterflies take one blast from the Ice Staff to be frozen and cannot be put to sleep.
- Any food item which decreases health will instantly kill the Butterfly.
- In Don't Starve Together, Butterfly farms can be created by planting them near Magma. The magma will kill the butterflies but will not burn their drops.
- In the Shipwrecked DLC, Elephant Cactus can also be used to farm Butterflies by surrounding one with Flowers.
- Maxwell's examination quote of the Butterfly ("It's a flying flower.") can either be interpreted as an explanation as to why they are plantable or a reference to their use as a flower-spawner.
- Dropping butter may be a reference to German folklore. Witches were said to turn into butterflies to steal butter and cream.
- When a stack of Butterflies is killed in the inventory, only 1 point of naughtiness will be added instead of the cumulative total.
- On Xbox One the command to turn a butterfly into a flower is "Murder" instead of "Plant".