Aphis pomi vs green apple aphid

Aphis pomi and green apple aphid both are nouns.

Word	Noun	Adjective	Verb	Adverb
Aphis pomi	Yes	No	No	No
green apple aphid	Yes	No	No	No

As nouns, Aphis pomi and green apple aphid are synonyms defined as:

Aphis pomi and green apple aphid: bright green aphid; feeds on and causes curling of apple leaves

Other synonyms of Aphis pomi include apple aphid.

Aphis pomi (noun)	green apple aphid (noun)
bright green aphid; feeds on and causes curling of apple leaves	bright green aphid; feeds on and causes curling of apple leaves