Genus Catacala is a group of moth species commonly referred to as underwings due to their unique coloration. Synonyms for this genus include Catocala, Noctua and Eudryas. Underwings are known for their cryptic coloration which allows them to blend into natural backgrounds such as tree bark. This genus is found throughout North America and parts of Eurasia. The larvae of these moths feed on various deciduous trees including oak, maple, and birch. Due to their unique coloration and impressive wingspan, many species of underwings are popular among collectors and enthusiasts. Despite their beauty, little is known about the behavior or habitat of these charismatic moths.