Polygonia comma vs comma

Polygonia comma and comma both are nouns.

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

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

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

Other synonyms of Polygonia comma include comma butterfly.

Polygonia comma (noun)	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
	a punctuation mark (,) used to indicate the separation of elements within the grammatical structure of a sentence