I saw these two moths in a restored prairie in eastern Nebraska last spring.  They formed a mirror image that was too perfect not to photograph.

While butterflies are typically more showy and get much more attention from biologists, moths make up a much larger part of the taxonomic family (Lepidoptera) the two share.  While these two are are exceptions, most moths are typically less colorful and better camouflaged than butterflies.  Because coloration is not always a dependable cue, the most reliable characteristic for telling a moth from a butterfly is that moths have fuzzy antennae and butterflies don’t.