This is an interesting skipper.
The upperside is very dark grey with 2 cell spots, the lower one very large.
The underside of the hindwing is a dull ochreous (worn) & without spots.
It may looks like a female Contiguous Swift, but lack of hindwing spots, wingbase & body hair colour are all wrong.
It is a Caltoris and the only with 2 cell spots & ochreous shading on the underside of the hindwing is C. bromus.(the other C. sirius doesn't match in the spots.)
It is probably this species.