lygaeid vs hemipteron

lygaeid and hemipteron both are nouns.

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

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

lygaeid: a true bug: usually bright-colored; pest of cultivated crops and some fruit trees
hemipteron: insects with sucking mouthparts and forewings thickened and leathery at the base; usually show incomplete metamorphosis

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

lygaeid (noun)	hemipteron (noun)
a true bug: usually bright-colored; pest of cultivated crops and some fruit trees	insects with sucking mouthparts and forewings thickened and leathery at the base; usually show incomplete metamorphosis