coreid bug vs hemipteran

coreid bug and hemipteran both are nouns.

Word	Noun	Adjective	Verb	Adverb
coreid bug	Yes	No	No	No
hemipteran	Yes	No	No	No

As nouns, hemipteran is a hypernym of coreid bug; that is, hemipteran is a word with a broader meaning than coreid bug:

coreid bug: a true bug
hemipteran: insects with sucking mouthparts and forewings thickened and leathery at the base; usually show incomplete metamorphosis

Other hypernyms of coreid bug include bug, hemipteron, hemipterous insect.

coreid bug (noun)	hemipteran (noun)
a true bug	insects with sucking mouthparts and forewings thickened and leathery at the base; usually show incomplete metamorphosis