These dotted butterflies are part of the Power Animal series designed by Amy (aka GirlFlamant).
I absolutely love each and every pattern of that series! All animal
silhouettes have their own pattern and include a fleur-de-lis owl and an
houndstooth patterned Jackalope. I'm about to start stitching a
tartan Loch Ness monster! Find all Power animals (and other patterns as well) in her Etsy shop.