It is thought that the wings have large amounts submicroscopic protrusions that have the same refractive index which means that they do not scatter light, so giving the impression of transparency. Whatever the reason, this is a startling and little known creature.
A butterfly with transparent wings? Surely not. Yet there is a species that exhibits this trait. Take a close look at the incredible Glasswing, an enchanting species that confounds science. Greta oto may sound like the name of a silent movie star from Eastern Europe but is in fact the scientific name for one of the most exquisite - and little known - species of butterfly on the planer. This butterfly's claim to fame is that its wings, spanning up to six centimeters, are almost completely transparent. That's right, you can see just about right through them.
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