hemipteron vs hemipterous insect

hemipteron and hemipterous insect both are nouns.

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

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

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

Other synonyms of hemipteron include bug, hemipteran.

hemipteron (noun)	hemipterous insect (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