pierid vs pierid butterfly

pierid and pierid butterfly both are nouns.

Word	Noun	Adjective	Verb	Adverb
pierid	Yes	No	No	No
pierid butterfly	Yes	No	No	No

As nouns, pierid and pierid butterfly are synonyms defined as:

pierid and pierid butterfly: any of numerous pale-colored butterflies having three pairs of well-developed legs

pierid (noun)	pierid butterfly (noun)
any of numerous pale-colored butterflies having three pairs of well-developed legs	any of numerous pale-colored butterflies having three pairs of well-developed legs