>>29484115Butterfly.
The Japanese trailer shows how its 2 biggest curly hair bits stick up, resembling antennae, and as it goes in its shell, its tail pops out at the bottom, which is curled and very much resembles a lepidopteran proboscis. And those things on its back resemble small butterfly wings.
Also, the official website description say that it distributes scales, and all butterflies have scales on their wings.