redbug vs harvest mite

redbug and harvest mite both are nouns.

Word	Noun	Adjective	Verb	Adverb
redbug	Yes	No	No	No
harvest mite	Yes	No	No	No

As nouns, redbug and harvest mite are synonyms defined as:

redbug and harvest mite: larval mite that sucks the blood of vertebrates including human beings causing intense irritation

Other synonyms of redbug include chigger, jigger.

redbug (noun)	harvest mite (noun)
larval mite that sucks the blood of vertebrates including human beings causing intense irritation	larval mite that sucks the blood of vertebrates including human beings causing intense irritation