orthopteran vs insect

orthopteran and insect both are nouns.

Word	Noun	Adjective	Verb	Adverb
orthopteran	Yes	No	No	No
insect	Yes	No	No	No

As nouns, insect is a hypernym of orthopteran; that is, insect is a word with a broader meaning than orthopteran:

orthopteran: any of various insects having leathery forewings and membranous hind wings and chewing mouthparts
insect: small air-breathing arthropod

orthopteran (noun)	insect (noun)
any of various insects having leathery forewings and membranous hind wings and chewing mouthparts	small air-breathing arthropod
	a person who has a nasty or unethical character undeserving of respect