tussock moth vs lymantriid

tussock moth and lymantriid both are nouns.

Word	Noun	Adjective	Verb	Adverb
tussock moth	Yes	No	No	No
lymantriid	Yes	No	No	No

As nouns, tussock moth and lymantriid are synonyms defined as:

tussock moth and lymantriid: dull-colored moth whose larvae have tufts of hair on the body and feed on the leaves of many deciduous trees

tussock moth (noun)	lymantriid (noun)
dull-colored moth whose larvae have tufts of hair on the body and feed on the leaves of many deciduous trees	dull-colored moth whose larvae have tufts of hair on the body and feed on the leaves of many deciduous trees