Do they have milk that we can churn into butter? If so, could we breed them and keep them in butterfly dairies? How would we milk them? Would they need udders?
Hi Didge, Well I did some research for you here...turns out the name 'butterfly' derives from Olde English. And then, there are species in England that are such a beautiful butter yellow...this one below is a migratory species called Clouded Yellow. The other idea I found was that it may have been a common belief that they stole butter!
I think it was in Stranger in a Strange Land that Heinlein described a butterfly as it would appear to somebody who had never before seen one. I'd always thought them beautiful but his description was one of wonder. Very cleverly done.