bean aphid vs blackfly

bean aphid and blackfly both are nouns.

Word	Noun	Adjective	Verb	Adverb
bean aphid	Yes	No	No	No
blackfly	Yes	No	No	No

As nouns, bean aphid and blackfly are synonyms defined as:

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

Other synonyms of bean aphid include Aphis fabae.

bean aphid (noun)	blackfly (noun)
blackish aphid that infests e.g. beans and sugar beets	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