mourning cloak butterfly vs mourning cloak

mourning cloak butterfly and mourning cloak both are nouns.

Word	Noun	Adjective	Verb	Adverb
mourning cloak butterfly	Yes	No	No	No
mourning cloak	Yes	No	No	No

As nouns, mourning cloak butterfly and mourning cloak are synonyms defined as:

mourning cloak butterfly and mourning cloak: of temperate regions; having dark purple wings with yellow borders

Other synonyms of mourning cloak butterfly include Camberwell beauty, Nymphalis antiopa.

mourning cloak butterfly (noun)	mourning cloak (noun)
of temperate regions; having dark purple wings with yellow borders	of temperate regions; having dark purple wings with yellow borders