Monarch butterfly (<i>Danaus plexippus</i>) on <i>Lythrum salicaria</i> flowers, Great Meadows, Concord, Massachusetts, USA
<a rel="nofollow" class="external text" href="https://www.flickr.com/people/calliope/">Muffet / liz west</a>
CC BY 2.0
<a rel="nofollow" class="external text" href="https://www.flickr.com/photos/calliope/1033777030/">flickr.com</a>