sphinx moth vs hawkmoth

sphinx moth and hawkmoth both are nouns.

Word	Noun	Adjective	Verb	Adverb
sphinx moth	Yes	No	No	No
hawkmoth	Yes	No	No	No

As nouns, sphinx moth and hawkmoth are synonyms defined as:

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

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

sphinx moth (noun)	hawkmoth (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