"GBIF seems to be a very good platform for a preliminary survey."

Care must be taken as GBIF offers many observations from iNaturalist.
There are many misidentifications.
However the location given is very useful.
eg correct examples of R. imparata can be obtained from Taiwan as R. moestalis is absent there.

29.https://www.butterflycircle.com/atta...5&d=1737906769

Caldubotys caldusalis/
This is fairly widesread.
https://species.wikimedia.org/wiki/C...742121184).jpg
https://commons.wikimedia.org/wiki/C...742121184).jpg

A 2nd widespread species left as Botyodes asialis have broad brown borders.
https://www.gbif.org/occurrence/4519026168