sphingid vs sphinx moth

sphingid and sphinx moth both are nouns.

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

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

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

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

sphingid (noun)	sphinx 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