One of the advantages of only having caught 4 moths last night is that it gives me plenty of time to look more closely at them. The Flounced Rustic is actually a very beautiful moth. However, it doesn’t seem to me that it flounces about in an exaggeratedly impatient or angry manner.
Presumably it’s name derives more from that of a flounce, or flounced, dress.
Flounce is an exaggeration, a frill or a flounce. It is a wide strip of fabric gathered and sewn to a skirt or dress. They most often appear at the hem and help exaggerate the character and silhouette of a skirt.