Insect and Orthopteron

Insect noun - A person of no importance or influence.

Orthopteron and insect are semantically related. In some cases you can replace term "Orthopteron" with "Insect", this nouns are similar.

Orthopteron noun - Any of various insects having leathery forewings and membranous hind wings and chewing mouthparts.

Insect and orthopteron are semantically related. You can use "Insect" instead a noun "Orthopteron".