nomia vs genus Nomia

nomia and genus Nomia both are nouns.

Word	Noun	Adjective	Verb	Adverb
nomia	Yes	No	No	No
genus Nomia	Yes	No	No	No

As nouns, nomia and genus Nomia are synonyms defined as:

nomia and genus Nomia: a genus of bee; some are important pollinators of legumes

nomia (noun)	genus Nomia (noun)
a genus of bee; some are important pollinators of legumes	a genus of bee; some are important pollinators of legumes