Why are they called blue morpho butterfly?

I'm sure they are from a planet in the universe that has been overrun by blue aliens. It just doesn't make sense. " Another visitor wrote: "I think the blue morpho is an expression of a fear of the color blue.

"This has nothing to do with the blue morpho being another color. They're simply a color that has the ability to change color. People get this confused and can say things like 'That purple morpho's a butterfly' but when you look at this species, you'll know that they are blue morpho because it's all there is.

"We have more creatures like this than most species' can even find their homes. " The blue morpho was discovered in 1978, according to the National Zoo's "Blue Morpho" website.