Musca vs arthropod genus

Musca and arthropod genus both are nouns.

Word	Noun	Adjective	Verb	Adverb
Musca	Yes	No	No	No
arthropod genus	Yes	No	No	No

As nouns, arthropod genus is a hypernym of Musca; that is, arthropod genus is a word with a broader meaning than Musca:

Musca (noun)	arthropod genus (noun)
type genus of the Muscidae: houseflies	a genus of arthropods
a small constellation in the polar region of the Southern Hemisphere near the Southern Cross and Chamaeleon