Lepidoptera Family Cossida Moths

The members of this family have longer antenna than the Hepialida, and the females are provided with extended ovipositors which enable them to place their eggs in the deep crevices of the bark of trees.

The larva are naked or only very slightly hairy, and have a plate on the second segment. They feed on the wood of trees or the interior of the stems of reeds. The pupa have spiny projections on each segment.