I’ve never heard anyone utter anything nasty about butterflies. About moths, yes, but not butterflies. In just about every other animal group, particularly within the many insect families, there are hordes of species — bedbugs, mosquitoes, yellow jackets, termites, carpenter ants, deer flies, weevils, locusts, what have you — that have been called every curse word in the book. But butterflies have been spared. Why?