hawk moth vs sphingid

hawk moth and sphingid both are nouns.

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

As nouns, hawk moth and sphingid are synonyms defined as:

hawk moth and sphingid: any of various moths with long narrow forewings capable of powerful flight and hovering over flowers to feed

Other synonyms of hawk moth include hawkmoth, hummingbird moth, sphinx moth.

hawk moth (noun)	sphingid (noun)
any of various moths with long narrow forewings capable of powerful flight and hovering over flowers to feed	any of various moths with long narrow forewings capable of powerful flight and hovering over flowers to feed