I almost didn't see this butterfly. Leafwings hang upside down and are marked to mimic dead leafs and that was what I thought it was at first. Once I noticed it, it held perfectly still and let me get right up close to get a photo. Also called marbled leafwing and silver-studded leafwing. They can be found from Mexico to the Amazon Basin.
Jazzy Leafwing (Hypna Clytemnestra)
Rosine Smith Sammons Butterfly House & Insectarium (Texas Discovery Gardens at Fair Park)