Lepidoptera vs order Lepidoptera

Lepidoptera and order Lepidoptera both are nouns.

Word	Noun	Adjective	Verb	Adverb
Lepidoptera	Yes	No	No	No
order Lepidoptera	Yes	No	No	No

As nouns, Lepidoptera and order Lepidoptera are synonyms defined as:

Lepidoptera (noun)	order Lepidoptera (noun)
moths and butterflies	moths and butterflies