rice weevil vs Sitophylus oryzae

rice weevil and Sitophylus oryzae both are nouns.

Word	Noun	Adjective	Verb	Adverb
rice weevil	Yes	No	No	No
Sitophylus oryzae	Yes	No	No	No

As nouns, rice weevil and Sitophylus oryzae are synonyms defined as:

rice weevil and Sitophylus oryzae: brown weevil that infests stored grain especially rice

Other synonyms of rice weevil include black weevil.

rice weevil (noun)	Sitophylus oryzae (noun)
brown weevil that infests stored grain especially rice	brown weevil that infests stored grain especially rice