Bombycina

Bombycina is the name for a subsection of Ditrysian insects in order containing both butterflies and moths having a dorsal heart vessel. Subsection Bombycina contains generally larger sized moths and butterflies in the superfamilies Bombycoidea, Calliduloidea, Cimelioidea, Drepanoidea, Geometroidea, Noctuoidea, and Papilionoidea, having spineless pupae.