Samia cynthia vs ailanthus silkworm

Samia cynthia and ailanthus silkworm both are nouns.

Word	Noun	Adjective	Verb	Adverb
Samia cynthia	Yes	No	No	No
ailanthus silkworm	Yes	No	No	No

As nouns, Samia cynthia and ailanthus silkworm are synonyms defined as:

Samia cynthia and ailanthus silkworm: large green silkworm of the cynthia moth

Samia cynthia (noun)	ailanthus silkworm (noun)
large Asiatic moth introduced into the United States; larvae feed on the ailanthus	large green silkworm of the cynthia moth
large green silkworm of the cynthia moth