Butterworms
Guides
Cossidae
carpenter millers, cossid millers, goat moths, carpenter moths
Cossidae, commonly known as carpenter millers or goat moths, is a family of large moths in the order Lepidoptera. The family contains over 110 genera with nearly 700 described species, with many more awaiting description. Members are found worldwide and are predominantly nocturnal, with the exception of the Southeast Asian subfamily Ratardinae. The family includes some of the largest moths by mass, such as Endoxyla cinereus, which can weigh up to 30 grams with a wingspan reaching 23 centimeters. Many species are economically significant as wood-boring pests, while others have cultural importance as food sources.