Flitting with a graceful, gliding flight amidst the canopies and understories of hackberry trees across eastern and central North America is Asterocampa celtis, commonly known as the Hackberry Emperor. This relatively drab yet intriguing butterfly is less attracted to colorful flowers and more to tree sap, rotting fruit, and even carrion, making it a unique and often approachable resident of woodlands, river bottoms, and suburban areas where its host trees thrive.