blackfly vs Aphis fabae

blackfly and Aphis fabae both are nouns.

Word	Noun	Adjective	Verb	Adverb
blackfly	Yes	No	No	No
Aphis fabae	Yes	No	No	No

As nouns, blackfly and Aphis fabae are synonyms defined as:

blackfly and Aphis fabae: blackish aphid that infests e.g. beans and sugar beets

Other synonyms of blackfly include bean aphid.

blackfly (noun)	Aphis fabae (noun)
small blackish stout-bodied biting fly having aquatic larvae; sucks the blood of birds as well as humans and other mammals	blackish aphid that infests e.g. beans and sugar beets
blackish aphid that infests e.g. beans and sugar beets