saturniid moth vs moth

saturniid moth and moth both are nouns.

Word	Noun	Adjective	Verb	Adverb
saturniid moth	Yes	No	No	No
moth	Yes	No	No	No

As nouns, moth is a hypernym of saturniid moth; that is, moth is a word with a broader meaning than saturniid moth:

saturniid moth: large brightly colored and usually tropical moth; larvae spin silken cocoons
moth: typically crepuscular or nocturnal insect having a stout body and feathery or hairlike antennae

saturniid moth (noun)	moth (noun)
large brightly colored and usually tropical moth; larvae spin silken cocoons	typically crepuscular or nocturnal insect having a stout body and feathery or hairlike antennae