Samia cynthia vs Samia walkeri

Samia cynthia and Samia walkeri both are nouns.

Word	Noun	Adjective	Verb	Adverb
Samia cynthia	Yes	No	No	No
Samia walkeri	Yes	No	No	No

As nouns, Samia cynthia and Samia walkeri are synonyms defined as:

Samia cynthia and Samia walkeri: large Asiatic moth introduced into the United States; larvae feed on the ailanthus

Other synonyms of Samia cynthia include cynthia moth.

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