pharaoh ant vs pharaoh's ant

pharaoh ant and pharaoh's ant both are nouns.

Word	Noun	Adjective	Verb	Adverb
pharaoh ant	Yes	No	No	No
pharaoh's ant	Yes	No	No	No

As nouns, pharaoh ant and pharaoh's ant are synonyms defined as:

pharaoh ant and pharaoh's ant: small red ant of warm regions; a common household pest

Other synonyms of pharaoh ant include Monomorium pharaonis.

pharaoh ant (noun)	pharaoh's ant (noun)
small red ant of warm regions; a common household pest	small red ant of warm regions; a common household pest