Aphis pomi vs apple aphid

Aphis pomi and apple aphid both are nouns.

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

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

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

Other synonyms of Aphis pomi include green apple aphid.

Aphis pomi (noun)	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