How an insect is named is often interesting. I’ve had this moth, a Mint-loving Pyrausta-Pyrausta acrionalis, visit the boneset for years. As I was putting this post together I wondered about the name and found that Pyrausta is a mythological small dragon that lived in fire and could not exist without. I’d guess, as moths are attracted to a flame, it is an appropriate connection.
This moth is rather small, @10mm or about 1/3″ and does resemble fire. Common Boneset aka Boneset Thoroughwort-Eupatorium perfoliatum is not a mint but in the aster family and I have not seen these on our mints but I’ll take its word for it.