class Insecta vs Coleoptera

class Insecta and Coleoptera both are nouns.

Word	Noun	Adjective	Verb	Adverb
class Insecta	Yes	No	No	No
Coleoptera	Yes	No	No	No

class Insecta (noun)	Coleoptera (noun)
insects; about five-sixths of all known animal species	beetles