This Butterfly is well unwrapped, textured and animated. It is then cached by Alembic format so basically you can use the same cache in all software support alembic. In the package I included Houdini, 3D Max , and Maya for your ease of use. It contains two action, one is flying loop and one is the act butterfly starts to fly, both in a range of 300 frames.
The animation is in slow motion so you can squeeze the time in alembic setting to achieve the speed needed for your own shot.
Here I added a preview of animation: https://youtu.be/asIyYgAl_pw
any question or support you needed let me know by emailing.