Blue Butterflies are so called because of the blue coloring in their wings. Since there are similar insects with blue wings, the Blue Butterfly is distinguished by the darker coloring along the top edge of the wing and its black body. While you can catch the butterfly with your hands, the butterfly itself has no value or use and is not placed in your inventory as a complete insect. When you catch one, Blue Butterfly Wings are placed in your inventory. These are useful as Alchemy ingredients.
Blue Butterflies may be found in temperate areas of Skyrim. A good place to look is the tundra around Whiterun. During the daylight hours, they may be found in the same places as Monarch Butterflies. These locations are the same areas where Torchbugs and Luna Moths may be found in the early nighttime hours. Several such places are near the Honningbrew Meadery or Whitewatch Tower. The butterflies are also frequently found in clearings and groves.
- Although butterflies are relatively easy to catch, sometimes they will fly away from you if you move near them and don't catch them straightaway. Butterflies often land on harvestable flowers, and if the flower has already been harvested, the butterfly may appear to be sitting in the air when it lands, as it sits on the original model dimensions of the plant with the flower instead of the lesser dimensions of the plant without the flower. This may occur before the flower is actually taken, they might sit a foot above a flower frozen if it's inside a cell like Riften.
- If hit with a spell or weapon, the butterfly falls apart into two butterfly wings.