comma butterfly vs Polygonia comma

comma butterfly and Polygonia comma both are nouns.

Word	Noun	Adjective	Verb	Adverb
comma butterfly	Yes	No	No	No
Polygonia comma	Yes	No	No	No

As nouns, comma butterfly and Polygonia comma are synonyms defined as:

comma butterfly and Polygonia comma: anglewing butterfly with a comma-shaped mark on the underside of each hind wing

Other synonyms of comma butterfly include comma.

comma butterfly (noun)	Polygonia comma (noun)
anglewing butterfly with a comma-shaped mark on the underside of each hind wing	anglewing butterfly with a comma-shaped mark on the underside of each hind wing