In going through the Nosophora ,the forms with the lower postmedial spot large occur in the east ie, Hk, Taiwan ,Korea, & Japan.
https://www.gbif.org/occurrence/4067374591
https://www.gbif.org/occurrence/1934786822
https://www.gbif.org/occurrence/4904286639
https://www.gbif.org/occurrence/4867835992
The forms with the lower postmedial spot reduced is mainly in NE India.
https://www.mothsofindia.org/Nosophora-semitritalis
Since the author below is pretty accurate with his IDs, N. semitritalis should be correct.
https://www.flickr.com/photos/itchyd...s/21567709959/
TL Seow: Cheers.