Anyone has the photograph for the above mentioned species? Underside.

Can the gender be tell from the underside?

If it is not possible to tell the gender from the underside, while there is one with a "white" (or bright rather) band at the side on both hind & forewings (like what Tawny Palmfly does). Can I say that it is a Tawny palmfly? The overall color is not as dark as the Common Palmfly.

Thanks.