chinch vs hemipteron

chinch and hemipteron both are nouns.

Word	Noun	Adjective	Verb	Adverb
chinch	Yes	No	No	No
hemipteron	Yes	No	No	No

As nouns, hemipteron is a hypernym of chinch; that is, hemipteron is a word with a broader meaning than chinch:

chinch: bug of temperate regions that infests especially beds and feeds on human blood
hemipteron: insects with sucking mouthparts and forewings thickened and leathery at the base; usually show incomplete metamorphosis

Other hypernyms of chinch include bug, hemipteran, hemipterous insect.

chinch (noun)	hemipteron (noun)
bug of temperate regions that infests especially beds and feeds on human blood	insects with sucking mouthparts and forewings thickened and leathery at the base; usually show incomplete metamorphosis