Moore's Ace butterfly

Yes...you got it...
Halpe porus

I wonder if it's a Moore's Ace (Halpe porus)...?

Thanks so much Eric and Ashish!

They called Ace in East Asia, Dart in Indian sub continent.

May be Thoressa varia

I feel its from Thoressa sp.
(I have deleted American specie name's comment)

Not an expert Ann, but I believe that would be a Skipper butterfly. Not sure of the exact type though :-)