Lampropeltis vs reptile genus

Lampropeltis and reptile genus both are nouns.

Word	Noun	Adjective	Verb	Adverb
Lampropeltis	Yes	No	No	No
reptile genus	Yes	No	No	No

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

Lampropeltis (noun)	reptile genus (noun)
king snakes and milk snakes	a genus of reptiles