hemipterous insect vs hemipteron

hemipterous insect and hemipteron both are nouns.

Word	Noun	Adjective	Verb	Adverb
hemipterous insect	Yes	No	No	No
hemipteron	Yes	No	No	No

As nouns, hemipterous insect and hemipteron are synonyms defined as:

hemipterous insect and hemipteron: insects with sucking mouthparts and forewings thickened and leathery at the base; usually show incomplete metamorphosis

Other synonyms of hemipterous insect include bug, hemipteran.

hemipterous insect (noun)	hemipteron (noun)
insects with sucking mouthparts and forewings thickened and leathery at the base; usually show incomplete metamorphosis	insects with sucking mouthparts and forewings thickened and leathery at the base; usually show incomplete metamorphosis