The Cossidae are members of the Superfamily Cossoidea. They occur worldwide, with more than 670 described species. The greatest numbers are found in tropical regions. About 50 species in America north of Mexico, 75% of which are found on the western side of the continent. These moths are small to large and hawk moth-like, and are the largest of the "microlepidoptera," with wingspans from 2.5 to 8.5 cm. They are also referred to as "goat moths," "carpenterworms," or "leopard moths". Adults are robust and heavy-bodied, and are typically nocturnal, drab, and mostly gray with black markings. Females are often much larger than males. Eggs are usually laid in crevices or under bark with an extensible ovipositor, and may be produced in vast numbers. Larvae bore into branches or trunks of living shrubs or trees, sometimes causing considerable damage, and require 1 to 4 years to mature. Host plants include at least 17 families of angiosperms.
