The superfamily Lasiocampoidea is a close relative and was historically sometimes merged in this group.

After many years of debate and shifting taxonomies, the most recent classifications treat the superfamily as containing 10 constituent families.

[4] Bombycoid larvae often exhibit horns.

[5] In the adult stage they are typically large, and include the largest moths in the world.

This article relating to the superfamily Bombycoidea is a stub.