genus Cimex vs arthropod genus

genus Cimex and arthropod genus both are nouns.

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

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

genus Cimex (noun)	arthropod genus (noun)
type genus of the Cimicidae: bedbugs	a genus of arthropods