Raorchestes tuberohumerus
This is a small frog.  The adult male frog is about 18 mm long from nose to rear end.  The skin of its back is brown with yellow spots on the tops of the legs.  Some frogs have a mark like an hourglass on their backs.  There are large red or yellow marks near where the back legs meet the body.  This frog can change color: it is darker during the day than at night, and its marks are clearer.