Vivillon

Vivillon is the Scale Pokémon, a Bug/Flying-type butterfly that serves as the final evolution of Scatterbug and Spewpa. It is most famous for its many wing patterns, which vary according to the climate and geography of the real-world region where it is encountered, giving it a notable number of collectible forms. Vivillon scatters colorful powdery scales from its wings and is known for its graceful flight, embodying the beauty and regional diversity of the Pokémon world.

The Japanese name ビビヨン (Bibiyon) is generally understood to derive from a playful, onomatopoeic or French-flavored coinage; it is often linked to 'vivid' (referencing its colorful, varied wing patterns) combined with the '-yon' ending used to give the name a soft, elegant ring evocative of a butterfly. The English name 'Vivillon' similarly blends 'vivid' (or the French 'vif/vivant,' meaning lively) with 'papillon,' the French word for butterfly, reflecting its butterfly-like appearance and the international, region-based variety of its wing designs.