hemipteran vs hemipterous insect

hemipteran and hemipterous insect both are nouns.

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

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

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

Other synonyms of hemipteran include bug, hemipteron.

hemipteran (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