arctiid moth vs arctiid

arctiid moth and arctiid both are nouns.

Word	Noun	Adjective	Verb	Adverb
arctiid moth	Yes	No	No	No
arctiid	Yes	No	No	No

As nouns, arctiid moth and arctiid are synonyms defined as:

arctiid moth and arctiid: stout-bodied broad-winged moth with conspicuously striped or spotted wings; larvae are hairy caterpillars

arctiid moth (noun)	arctiid (noun)
stout-bodied broad-winged moth with conspicuously striped or spotted wings; larvae are hairy caterpillars	stout-bodied broad-winged moth with conspicuously striped or spotted wings; larvae are hairy caterpillars