hawk moth vs moth

hawk moth and moth both are nouns.

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

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

hawk moth: any of various moths with long narrow forewings capable of powerful flight and hovering over flowers to feed
moth: typically crepuscular or nocturnal insect having a stout body and feathery or hairlike antennae

hawk moth (noun)	moth (noun)
any of various moths with long narrow forewings capable of powerful flight and hovering over flowers to feed	typically crepuscular or nocturnal insect having a stout body and feathery or hairlike antennae