black and white Helen

== English == === Noun === black and white Helen (plural black and white Helens) Any of subspecies Papilio nephelus sunatus of papilionid butterflies, native to China and Southeast Asia. ==== Coordinate terms ==== Papilio nephulus chaon (yellow Helen) === References === “black and white Helen”, in OneLook Dictionary Search. Papilio nephelus on Wikipedia.Wikipedia Papilio nephelus sunatus on Wikispecies.Wikispecies Category:Papilio nephelus sunatus on Wikimedia Commons.Wikimedia Commons