order Dictyoptera vs Hexapoda

order Dictyoptera and Hexapoda both are nouns.

Word	Noun	Adjective	Verb	Adverb
order Dictyoptera	Yes	No	No	No
Hexapoda	Yes	No	No	No

order Dictyoptera (noun)	Hexapoda (noun)
in some classifications replaced by the orders (here suborders) Blattodea (cockroaches) and Manteodea (mantids); in former classifications often subsumed under a much broader order Orthoptera	insects; about five-sixths of all known animal species