coreid vs Anasa tristis

coreid and Anasa tristis both are nouns.

Word	Noun	Adjective	Verb	Adverb
coreid	Yes	No	No	No
Anasa tristis	Yes	No	No	No

As nouns, Anasa tristis is a hyponym of coreid; that is, Anasa tristis is a word with a more specific, narrower meaning than coreid:

coreid: a true bug
Anasa tristis: large black American bug that sucks sap of vines of the gourd family

Other hyponyms of coreid include squash bug, leaf-foot bug, leaf-footed bug.

coreid (noun)	Anasa tristis (noun)
a true bug	large black American bug that sucks sap of vines of the gourd family