sphingid vs hawk moth

sphingid and hawk moth both are nouns.

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

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

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

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

sphingid (noun)	hawk moth (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