Yellow twill butterfly, it is estimated that it is the name of Hong Kong people, Cantonese people call it very smoothly, it is estimated that northerners speak well.
Of course, it can also be called windmill butterfly, gorgeous butterfly, orange ribbon butterfly, six-belt butterfly...
The first three photos, taken on December 16, 2018, in the Dunagai Doñín Waters, Philippines.
The last three photos, taken on February 26, 2016, off the coast of Sleeping Beauty Island in Semporna, Malaysia
Yellow twill butterfly, Southeast Asian recreational diving is still relatively easy to see.
Disclaimer: Copyrighted photos, do not infringe.